science

Pictures of the northern lights last night typically display green and sometimes red or purple curtains of light across dark skies. These images are captured by photographers, s...

The moon phase on April 17th varies each year because the lunar cycle repeats every 29.5 days. On many April 17th dates, the moon is near first quarter or waxing gibbous, but ex...

The phases of the moon are the changing shapes of the moon as seen from Earth. They result from the moon's position in its orbit around Earth, which changes how much of the sunl...

Uranus is the seventh planet from the Sun in our solar system. It orbits at an average distance of about 2.9 billion kilometers, or roughly 19.2 astronomical units. This places...

Yes, the coelacanth is still alive. Once thought to have gone extinct with the dinosaurs, this ancient fish was rediscovered alive in 1938 off the coast of South Africa.

The most toxic animal in the world is widely considered to be the golden poison frog (Phyllobates terribilis). A single specimen carries enough batrachotoxin to kill around 10 t...

A solar eclipse happens when the Moon passes between Earth and the Sun, blocking sunlight partially or fully. It occurs only during a new moon. Viewers must be inside the Moon's...

Looking at a solar eclipse without protection exposes your eyes to intense solar radiation. The sun emits visible light, infrared, and ultraviolet energy that can burn the retin...

An octopus is a soft-bodied marine mollusk with eight arms, belonging to the order Octopoda. It lives on the ocean floor and is known for its rounded body, large eyes, and flexi...

A pregnant spider explodes when its body ruptures due to extreme pressure, disease, or physical damage. The term usually refers to a gravid female whose abdomen splits open, rel...

Laboratory tests on Caenorhabditis elegans neurons measure electrical activity, calcium signaling, and synaptic function to assess viability. Results showing consistent electric...

Articles about great white sharks typically summarize their biology, behavior, and role in marine ecosystems. They describe body size, diet, migration patterns, and how research...

Venus is often called Earth's sister planet because it is similar in size, mass, and density. Its diameter is about 95 percent of Earth's, and its gravity is close to ours. This...

Harvard astrophysicists study the possibility of life beyond Earth using telescopes, data analysis, and planetary science. Their work focuses on detecting biosignatures and tech...

The biggest spider in the world is the Goliath birdeater (Theraphosa blondi). It is a heavy-bodied tarantula recognized for its large size and is often cited as the largest spid...

No, Bill Nye is not dead. As of the latest public records, he is alive and continues to be active in science communication and media appearances.

The term refers to short clips recorded by U.S. Navy personnel showing unidentified aerial phenomena near military aircraft and ships. The videos were later reviewed by the Depa...

Bioluminescent dolphins are cetaceans that can produce visible light through internal chemical reactions in their bodies. This glow is created when luciferin-like molecules reac...

The biggest spider found in Australia is the Australian huntsman spider. Its body is about 4 to 5 centimeters long, and with legs spread it can reach 15 centimeters or more. The...

The first confirmed giant squid specimen was captured in 1873 off the coast of Newfoundland, Canada. A fisherman hauled in a large squid, and the specimen was later studied by s...

The last total solar eclipse visible across the continental United States occurred on August 21, 2017. It was widely observed from coast to coast, with the path of totality stre...

A ring of fire eclipse is a type of annular solar eclipse. The Moon passes between Earth and the Sun, but it is too far from Earth to fully cover the Sun. This leaves a bright r...

A woolly mammoth stood about 9 to 11 feet tall at the shoulder, roughly two to three times the height of an average human. Their massive limbs, curved tusks, and heavy build mad...

The Perseverance rover successfully landed on Mars on February 18, 2021, inside Jezero Crater. The mission, led by NASA, aimed to study Martian geology and past habitability. Th...

The fall equinox in 2018 occurred on September 22. In the Northern Hemisphere, the official autumnal equinox began at 21:54 Coordinated Universal Time (UTC), marking the moment...

The blood moon eclipse begins when the Moon enters Earth's penumbra, with the main umbral eclipse starting a short time later. Exact start times vary by location and time zone....

K2-18b is located about 124 light-years from Earth in the constellation Leo. This distance means light traveling from the planet takes roughly 124 years to reach us.

Scientists have recovered living tardigrades, nematodes, and microbes from Antarctic ice and permafrost. These organisms survive extreme cold, dryness, and low oxygen by enterin...

A G5 geomagnetic storm is the strongest category on the NOAA geomagnetic storm scale. It is caused by a major disturbance in the solar wind that strongly compresses Earth's magn...

Yes, Neil deGrasse Tyson is a real scientist. He is an astrophysicist, author, and science communicator. He earned a doctorate in astrophysics from Columbia University and has w...

Jane Wilde Hawking was Stephen Hawking’s first wife. They married in 1965 while he was a graduate student at Cambridge. She supported his early career while managing family li...

Yes, two-headed snakes are real. They are a form of polycephaly, a condition where an animal develops more than one head. In snakes, this usually happens when a single embryo pa...

You can expect to see Venus high in the sky around midnight when it is at its greatest eastern or western elongation and the planet is near opposition to the Sun. During these p...

The Tasmanian tiger, or thylacine (Thylacinus cynocephalus), was a carnivorous marsupial native to Australia and Tasmania. It had a dog-like body, striped lower back, and a pouc...

The term "most poisonous" usually refers to the substance with the lowest lethal dose. By that measure, the botulinum toxin produced by Clostridium botulinum bacteria is widely...

The film depicts a rapidly spinning black hole called Gargantua, surrounded by a bright accretion disk of superheated gas. The scene focuses on gravitational lensing, where extr...

There is no single named individual recognized as the first person to ever be alive. Modern humans, Homo sapiens, evolved gradually over millions of years through changes in pop...

The aliens documentary 2025 refers to a wave of new documentary films and series released or announced for 2025 that focus on extraterrestrial life, space exploration, and relat...

Monarch butterflies are not officially listed as extinct, but their populations have declined sharply in recent decades. Scientists track two main populations, with the migrator...

The next total solar eclipse visible across parts of America will occur on August 12, 2044. The path of totality will cross several northern states, offering viewers a chance to...

A cat brain is smaller than a human brain, yet it shares a similar structure, including regions for emotion, memory, and sensory processing. The cerebral cortex, responsible for...

Several asteroids pass near Earth regularly, but recent attention has focused on designated close approaches tracked by NASA. These objects are measured by their minimum orbit i...

Yes, Neanderthals and modern humans interbred. Studies of ancient DNA confirm that most non-African people carry a small percentage of Neanderthal DNA, indicating that mating oc...

A blood moon is the reddish appearance of the Moon during a total lunar eclipse. Earth blocks direct sunlight, and only longer red wavelengths reach the Moon, giving it a copper...

A widely shared pic of Stephen Hawking shows him seated in a wheelchair, using his speech-generating device. The image captures his posture, the frame of his wheelchair, and the...

An extinct snail is a snail species that no longer has any living individuals anywhere on Earth. Extinction is permanent and different from endangerment, where a species still s...

The human brain weighs about 1.3 to 1.4 kilograms, while a cat brain is roughly 25 to 30 grams. Despite the size difference, both brains share a similar basic structure, includi...

Fish from the abyss live in the deep ocean, typically below 200 meters where sunlight fades. These species survive extreme pressure, near-freezing temperatures, and limited food...

Ants placed in a vacuum typically die because the environment removes air and moisture. Without atmospheric pressure, their bodies lose water quickly, and their tracheal breathi...

The oldest known mummy is a naturally preserved human body, often referred to as the Spirit Cave mummy, discovered in a dry cave in what is now Nevada, United States. Radiocarbo...

Red hair occurs in roughly 1 to 2 percent of the global population, while left-handedness affects about 10 percent. Both traits are more common in people of Northern European de...

String theory proposes that the fundamental building blocks of the universe are one-dimensional vibrating strings rather than point particles. The string theory relationship ref...

The delta aquariids are a moderate annual meteor shower active from mid-July to mid-August. They appear to radiate from the constellation Aquarius, near the star Delta Aquarii....

The Hubble Space Telescope has captured detailed images of regions around black holes by observing their effects on nearby stars and gas. While Hubble cannot directly photograph...

No astronaut has been lost in space during a mission in 2025. The term refers to crew members who died during training, launch, or reentry, or who died far from Earth. As of 202...

In toxicology, the most dangerous poison in the world is often considered to be botulinum toxin, produced by the bacterium Clostridium botulinum. It is extremely potent, with a...

She is famous for observing chimpanzees using tools, hunting, and forming complex social bonds. Her long term field research at Gombe Stream challenged earlier assumptions that...

Underwater pressure death refers to fatalities caused by the increasing water pressure as a diver descends. As depth increases, pressure compresses air spaces in the body and al...

Penicillin kills bacterial cells by interfering with cell wall synthesis. The drug inhibits enzymes needed to build peptidoglycan, the rigid mesh that maintains bacterial shape...

Anglerfish are deep sea predatory fish known for their bioluminescent lure, or esca, which dangles in front of the mouth to attract prey in the dark ocean. National Geographic h...

Lunar eclipse timing varies by location and eclipse type. Check a trusted source such as timeanddate.com for your city’s exact start, peak, and end times.

UFO stands for Unidentified Flying Object. It refers to any aerial phenomenon that observers cannot immediately identify. The term does not imply extraterrestrial origin, only t...

NASA girl is a phrase used to describe a young woman or girl interested in NASA, space science, and aerospace careers. It often appears in media, education campaigns, and social...

NASA has not yet sent astronauts to other planets because current technology cannot safely support long-duration human travel beyond Earth orbit. Missions to Mars and beyond req...

Venus is often visible near the horizon just after sunset because it orbits closer to the Sun than Earth does. As an inner planet, it appears in the western sky in the evening o...

Stars die when they exhaust their nuclear fuel. Low mass stars swell into red giants, shed outer layers as planetary nebulae, and leave behind dense cores called white dwarfs. M...

Uranus is an ice giant with no solid surface. It is made mostly of hydrogen, helium, and methane, with intense pressures and temperatures deep inside. The atmosphere contains hi...

Scientists have confirmed the discovery of a new species of shark, adding to the known diversity of elasmobranchs. The identification was based on morphological differences and...

On April 13, 2029, asteroid 99942 Apophis will pass about 31,900 kilometers from Earth, closer than some satellites. NASA confirms this flyby is not an impact event.

Space worms refer to small invertebrates, especially nematodes like Caenorhabditis elegans, that have been sent to orbit for scientific research. These organisms are used becaus...

The world's largest iceberg is a massive floating block of freshwater ice that has broken away from a glacier or ice shelf. It is defined by its area and thickness, with current...

Non-avian dinosaurs went extinct about 66 million years ago at the close of the Cretaceous period. This event, known as the Cretaceous–Paleogene extinction, removed more than...

String theory soulmates refers to a speculative idea that partners are linked by hidden patterns in the extra dimensions of string theory. In physics, string theory proposes tha...

Most dinosaurs decayed or were scavenged before they could fossilize. Rare fossils form only when remains are buried quickly in fine sediment, protected from oxygen and bacteria...

Summer is hotter than winter mainly because of Earth's axial tilt. As Earth orbits the Sun, one hemisphere leans toward the Sun in its respective summer, receiving more direct s...

Before the first confirmed alien Earth candidates, scientists theorized that other stars could host planets. Early exoplanet discoveries in the 1990s were mostly hot, large gas...

There is no single answer because intelligence is measured in different ways. Researchers often compare problem-solving, memory, social learning, and tool use across species.

The total lunar eclipse on March 3, 2026, begins with the penumbral phase around 10:00 PM EST and reaches totality near 11:30 PM EST. The event is visible across much of the Ame...

The oldest known deliberate mummy is the Spirit Cave mummy, discovered in Nevada, United States. Radiocarbon dating places the remains at roughly 10,600 years old, making it one...

For decades, the Moon was considered dry. Later studies showed trace amounts of water exist in sunlit surface layers and in permanently shadowed craters near the poles. NASA mis...

A partial solar eclipse will occur on September 21, 2025, when the Moon passes between Earth and the Sun. The Moon will cover part of the Sun, creating a crescent-shaped solar d...

The world's smallest primate is the mouse lemur, specifically Madame Berthe's mouse lemur. It weighs around 30 grams and measures roughly 9 centimeters in body length, making it...

A solar eclipse happens when the Moon passes between Earth and the Sun, casting a shadow on Earth. In a total solar eclipse, the Moon fully covers the Sun’s disk for observers...

Venus is called the evening star because it is often visible as a bright point of light in the western sky shortly after sunset. This name comes from its history in ancient astr...

A hydrogen bomb test is a controlled detonation of a thermonuclear device designed to validate its yield and performance. These tests confirm the weapon’s design and provide d...

A serial killer is someone who commits multiple murders, usually three or more, with distinct patterns or motives. Law enforcement agencies track these cases to identify behavio...

The Earth is not splitting in half. While the planet experiences earthquakes, volcanic activity, and slow crustal movement, these processes do not indicate a literal split. The...

A whale stranded, or beached, is a cetacean that ends up on a shore, beach, or in shallow water where it cannot return to the sea on its own. Strandings can involve single anima...

A solar eclipse happens when the Moon passes between Earth and the Sun, blocking sunlight partially or fully. This alignment only occurs during a new moon phase. Total solar ecl...

Twins with different fathers are called superfecund twins. This happens when a woman releases more than one egg during the same cycle and each egg is fertilized by sperm from di...

When scientists declare a species extinct, it means no living individuals are known to exist. "Animals thought to be extinct found" refers to species later rediscovered alive in...

In July 1947, a rancher found unusual debris on a ranch near Roswell, New Mexico. The U.S. Army Air Forces initially reported recovering a "flying disc," then later said the mat...

Human ancestors skulls refer to fossilized crania from extinct species on the lineage leading to Homo sapiens. They document changes in brain size, face shape, and jaw structure...

The term "new planet in our solar system" usually refers to distant dwarf planets or trans-Neptunian objects discovered in recent years. These bodies orbit far beyond Neptune an...

Dire wolf eyes were proportionally large for their skull size, similar to those of modern gray wolves. Their forward-facing eye sockets suggest binocular vision, which helps wit...

Blue color in sea creatures often comes from light interaction with skin or scales rather than pigment. In many species, blue helps with camouflage, communication, or temperatur...

Scientists discovered a new blue pigment called YInMn blue by accident while experimenting with materials for electronics. The pigment gets its color from the crystal structure...

Before human spaceflight, agencies needed to study how launch forces, microgravity, and radiation affect living organisms. Animals helped scientists understand survival in space...

T Rex arms are short relative to its massive body. Adults had forelimbs roughly 3 feet long, with only two functional fingers. Despite their size, the bones were thick and heavi...

Earth traditionally has four seasons: spring, summer, autumn, and winter. These are caused by the tilt of Earth's axis as it orbits the Sun.

A hybrid dinosaur is a fictional or speculative creature that combines traits from two or more real dinosaur species. In science and media, these hybrids are imagined to test ho...

An extinct bat is a species of the order Chiroptera that no longer has living individuals. Extinction means the species has permanently disappeared from Earth. Scientists confir...

An Earth like world is a planet that resembles Earth in size, rocky composition, and position within its star system. It typically orbits within the habitable zone, where temper...

The dinosaur extinction was triggered by the Chicxulub impactor, a massive asteroid or comet roughly 10 to 15 kilometers wide. It struck Earth about 66 million years ago, leavin...

In Interstellar, Earth faces severe ecological collapse. Crops fail due to blight, dust storms become frequent, and oxygen levels slowly decline. The film presents a near-future...

In 2024, researchers announced the discovery of a new prehistoric fish species based on exceptionally preserved fossils. The specimen reveals a jawed vertebrate with features br...

Jupiter is the fifth planet from the Sun and the largest in our solar system. It is a gas giant composed mostly of hydrogen and helium. Its mass is more than twice that of all o...

Kilauea, on Hawaii's Big Island, experienced renewed eruptive activity in 2024 within Halemaʻumaʻu crater. The eruption produced lava fountains and flows confined mostly to th...

Ocean worms are elongated, soft-bodied invertebrates that live in marine environments. They belong to several phyla, including Annelida, Nemertea, and Sipuncula. They range from...

The pocket shark is a small deep sea shark known for a unique pocket shaped light organ near its pectoral fins. It belongs to the family Dalatiidae and is one of the rarest shar...

No, the Milky Way is not inside a black hole. The Milky Way is a large barred spiral galaxy containing billions of stars, gas, and dust spread across about 100,000 light-years.

Red hair is primarily linked to variants in the MC1R gene on chromosome 16. This gene controls the type of melanin produced in skin and hair cells. Certain inherited changes in...

A penguin human hybrid is a hypothetical or fictional combination of human and penguin traits. In science and media, it appears as a concept in speculative biology, art, and fic...

A rare green comet is a comet whose coma or tail appears distinctly green or greenish. The color is usually caused by diatomic carbon and cyanogen gases that glow when energized...

Bill Nye is an American science communicator, engineer, and television presenter known for the educational show Bill Nye the Science Guy . He became widely recognized for making...

NASA and other agencies do not allow astronauts to attempt pregnancy during active spaceflight assignments. Female astronauts undergo medical screening, and pregnancy is conside...

Apes are primates without tails, including gorillas, chimpanzees, bonobos, orangutans, and gibbons. They live on Earth in tropical and subtropical forests, mainly in Africa and...

An eclipse happens when one celestial body moves into the shadow of another. A solar eclipse occurs when the Moon passes between the Sun and Earth, blocking sunlight partially o...

The spring equinox in 2019 occurred on March 20. On this date, the Sun crossed the celestial equator moving northward, marking the start of spring in the Northern Hemisphere and...

The phases of the moon are the changing shapes of the moon we see from Earth as it orbits our planet. They result from the moon's position relative to the Earth and the Sun.

Mars is the planet closest to Jupiter in average orbital distance. Earth and Venus are also relatively close, but Mars sits just outside the asteroid belt, making it the nearest...

Bill Nye studied mechanical engineering at Cornell University and earned a bachelor of science degree. His formal training focused on engineering rather than laboratory research...

Jane Goodall remains active in wildlife conservation and environmental advocacy. She leads global campaigns through the Jane Goodall Institute, emphasizing habitat protection, c...

A giraffe has seven neck vertebrae, the same number found in almost all mammals, including humans. Each vertebra is greatly elongated, which gives the giraffe its distinctive lo...

Northern lights, or aurora borealis, are glowing curtains of light caused by charged particles from the Sun hitting Earth's atmosphere. From the space station, astronauts see th...

Bioluminescence is the production of light by a living organism through chemical reactions. On land, it is less common than in the ocean. Many glowing land animals use light to...

Apophis will be best seen from parts of Europe, Africa, and Asia during its close approach. Observers in the Northern Hemisphere will have the easiest access to the night sky po...

The coelacanth is a large, lobe-finned fish once believed to have gone extinct with the dinosaurs. Its discovery proved that some prehistoric species survived into modern times.

Flesh-eating algae refers to certain species of algae and cyanobacteria that can damage living tissue. The term is often used for organisms that produce toxins or form aggressiv...

Air and water do not form a single new substance on their own. Instead, they remain a mixture of gases and liquid water. When air contacts water, gases such as oxygen and carbon...

The new Jurassic World dinosaur name is "Atrociraptor." In the film Jurassic World Dominion, this raptor is presented as a distinct genus separate from Velociraptor. The name co...

A lunar eclipse occurs when Earth moves between the Sun and the Moon, casting a shadow on the Moon. This can only happen during a full moon when the Sun, Earth, and Moon align....

In early 2024, a bright fireball was widely reported across parts of Texas, with many residents describing a loud sonic boom and a streak of light in the sky. The event was reco...

Jane Goodall is a British primatologist and anthropologist. She is best known for studying wild chimpanzees in Gombe Stream, Tanzania, beginning in 1960. Her research documented...

A solar eclipse begins at a specific local time that varies by location. The eclipse starts with the partial phase, when the Moon first touches the Sun’s edge.

Sea worms are elongated, soft-bodied invertebrates that live in marine environments. They belong to several phyla, including Annelida, Nemertea, and Phoronida. They range from t...

In the days after the 1986 explosion, the most severe radiation exposure killed large numbers of animals within the immediate vicinity. Workers and emergency responders faced ac...

A super blue blood moon is a rare lunar event that combines three phenomena: a supermoon, a blue moon, and a total lunar eclipse. During this event, the Moon appears larger and...

A Tyrannosaurus rex arm was short relative to its body, typically around 3 feet long including the hand. In comparison, an average adult human arm spans roughly 2 to 2.5 feet fr...

There is no confirmed date for the end of humanity. Researchers study extinction risk through probabilistic models and historical survival data. These models focus on the likeli...

Mauna Loa is one of the most active volcanoes on Earth. It is a shield volcano on Hawaii Island and has erupted 33 times since 1843. Its most recent eruption began in November 2...

The phrase refers to reports where observers claim an unidentified flying object altered the path of a meteor. In these accounts, a bright meteor changes direction suddenly, and...

In 2010, researchers documented several new species across diverse habitats, highlighting the planet’s ongoing biological discovery. These finds included plants, insects, and...

The Geminid meteor shower peaks each December, typically around the 13th and 14th. It is visible from both hemispheres, though observers in the Northern Hemisphere usually see m...

Mars near to Earth varies because both planets follow elliptical orbits. At closest approach, called opposition, Mars can be about 54.6 million kilometers from Earth. At its far...

Meat eating flies are insects that feed on animal tissue, including fresh flesh, carrion, and wounds. They belong to several fly families, with blow flies and flesh flies being...

Jane Goodall is a British primatologist and anthropologist who pioneered the study of wild chimpanzees in Gombe Stream, Tanzania. Her long-term fieldwork changed how scientists...

Mammal fossils are preserved remains or traces of ancient mammals, including bones, teeth, and occasionally footprints. They form when sediment buries hard tissues, slowing deca...

A giant cephalopod is a large marine mollusk in the class Cephalopoda, which includes squid, octopus, and cuttlefish. The term usually refers to the largest known species, such...

Reports describe a woman falling into lava near an active volcanic vent. Such events are rare and usually occur in areas with thin crust or unstable ground near lava lakes or fl...

A blood moon is the reddish color the Moon takes on during a total lunar eclipse. Sunlight passes through Earth’s atmosphere, which scatters blue light and bends red light ont...

South Korea has produced several important dinosaur fossils in the past decade. Most finds come from the Cretaceous-age formations of the Gyeongsang Basin, where sedimentary roc...

NASA rovers have found minerals and rock textures that form in water, suggesting lakes and rivers existed long ago. ESA's Trace Gas Orbiter has studied methane variations, and N...

Quicksand is a mix of sand, water, and sometimes clay or fine sediment that loses strength when disturbed. On beaches it often forms near the waterline where groundwater seeps u...

Axial Seamount is an underwater volcano on the Juan de Fuca Ridge off the Oregon coast. It sits above a magma supply zone where tectonic plates spread apart. The seamount hosts...

The Georgia meteorite is a recovered space rock found in the U.S. state of Georgia. Researchers classify it as a meteorite of extraterrestrial origin, meaning it came from beyon...

In 2023, researchers reported detections of dimethyl sulfide and methane in K2-18b's atmosphere using JWST data. On Earth, dimethyl sulfide is primarily produced by marine life,...

Last night UFO reports often describe bright lights, unusual motion, or objects that do not match known aircraft. Many sightings are later explained by satellites, drones, or hi...

People could live on the Moon using sealed habitats, radiation shielding, and life support systems. NASA and other agencies are studying short-term outposts and longer stays for...

Apophis is a near-Earth asteroid discovered in 2004, initially named after the Egyptian mythological serpent of chaos. Early observations raised concerns about a potential futur...

Falling into lava exposes the body to temperatures between 700°C and 1,200°C (1,300°F to 2,200°F). At these temperatures, organic tissue is destroyed almost instantly. The e...

Neil Degrasse Tyson frequently discusses evolution as a core concept in science. He explains that evolution describes how life changes over long periods through processes like n...

Bears and dogs both belong to the order Carnivora. This group includes many dog-like mammals that evolved from common ancestors millions of years ago. Over time, different linea...

A recently discovered shark refers to a shark species identified and formally described by scientists within the past few years. These finds often come from deep-sea surveys, mu...

When a meteorite reaches the ground, it releases kinetic energy that can create a crater, generate shockwaves, and scatter debris. The damage depends on size, speed, composition...

The biggest snake recorded in history is Titanoboa cerrejonensis, a massive prehistoric constrictor that lived about 60 million years ago. Fossils found in Colombia show it reac...

The first confirmed video footage of a live giant squid in its natural habitat was captured in 2004 by Japanese researchers. The team filmed the animal at depths of about 900 me...

A 1-kilometer asteroid would release energy equivalent to millions of megatons of TNT upon impact. The collision would excavate a crater roughly 10 to 20 kilometers wide and tri...

Ulughbegsaurus is a large theropod dinosaur known mainly from fragmentary remains found in Uzbekistan. Based on available fossils, paleontologists estimate its body length was r...

Archaeologists uncovered a human jawbone at the Orozmani site in Georgia. The fossil is among the oldest Homo erectus remains found outside Africa. Researchers dated the bone to...

Richard C Hoagland is a controversial researcher known for promoting theories about hidden NASA data and artificial structures on the Moon and Mars. He gained attention in the 1...

A bacteria population that starts with 400 bacteria begins a growth process shaped by species, nutrients, and environment. Under favorable conditions, the population can double...

James Watson was an American molecular biologist who co-discovered the double-helix structure of DNA in 1953. His work transformed biology and earned a Nobel Prize in 1962. He l...

The dinosaur-killing asteroid was roughly 10 to 15 kilometers (about 6 to 9 miles) wide. This size is based on crater evidence and impact models. At that scale, it was far large...

The gonatus squid is a genus of small to medium sized cephalopods in the family Gonatidae. These squids have a slender mantle, short arms, and prominent hooks on their tentacles...

Snow looks white because sunlight contains many colors. When light enters a snowflake, it bounces around inside the ice crystal and scatters back out in many directions. This mi...

Stephen Hawking died on March 14, 2018, at his home in Cambridge, England. He was 76 years old. Hawking was a British theoretical physicist, cosmologist, and author best known f...

Eclipse pics today refer to recent photographs of solar or lunar eclipses captured worldwide. These images show the moon passing between Earth and the sun, or Earth's shadow fal...

A blood moon is the reddish appearance of the Moon during a total lunar eclipse. Earth blocks direct sunlight, and only light bent through our atmosphere reaches the Moon, givin...

Mammoths roamed cold regions, but their remains are often destroyed by glaciers, erosion, and acidic soils. Permafrost preserves some specimens, yet most carcasses decompose or...

Lizards breathe using lungs, which are simpler than mammalian lungs but still effective for gas exchange. Air enters through the nostrils, passes through the trachea, and reache...

Aurora lights from space are glowing curtains of color seen around Earth’s poles. From orbit, they appear as bright, shifting bands of green, red, and purple draped over the n...

A blood moon occurs during a total lunar eclipse, when Earth casts its shadow on the Moon. The start time in Central Standard Time depends on the specific eclipse. For example,...

Flies are born through a process called complete metamorphosis, which includes four distinct stages: egg, larva, pupa, and adult. The cycle begins when a female fly lays eggs in...

In early 2025, multiple observers reported and recorded unidentified aerial phenomena across several regions. These videos show structured objects exhibiting rapid acceleration...

The Giant Crystal Cave is a natural cave in the Naica Mine, Chihuahua, Mexico. It contains massive selenite crystals formed in extreme heat and mineral-rich water.

Venus has zero moons. It is one of the two planets in our solar system that does not have any natural satellites, alongside Mercury.

Dolphins are frequently seen near spacecraft splashdown areas because capsule landings occur in open ocean regions rich with marine life. These zones attract marine animals, inc...

Alligator sperm are the male reproductive cells of alligators. Like other reptiles, they are produced in the testes and stored in the epididymis until ejaculation. Each cell is...

The prehistoric ice age refers to extended periods when large ice sheets covered significant portions of Earth. The most recent major glaciation peaked about 20,000 years ago, s...

Comet Hale-Bopp is a bright long-period comet discovered in 1995 by Alan Hale and Thomas Bopp. It became visible to the naked eye for 18 months, making it one of the most observ...

An August 10 planet alignment refers to a near-conjunction of several planets in the sky as seen from Earth. On or around this date, planets such as Mercury, Venus, Mars, Jupite...

A solar eclipse happens when the Moon passes between the Earth and the Sun, blocking sunlight partially or fully. This alignment is called syzygy, and it only occurs during a ne...

The oldest rhinoceros documented in modern records lived well into its senior years in captivity. While exact ages vary by species, some individuals have exceeded 50 years under...

The January 2019 red moon was a total lunar eclipse, also called a super blood wolf moon. During the event, Earth moved directly between the Sun and the Moon, casting a shadow t...

When astronomers say a star died yesterday, they usually mean a recent supernova or a sudden change in a massive star. These events are detected by telescopes and automated sky...

A super blue moon is a full moon that is both a supermoon and a blue moon. A supermoon happens when the Moon is near its closest point to Earth, making it appear larger and brig...

No known snake species can swallow an adult human whole. Human shoulders are too wide for most snake jaws, and no verified case shows a healthy adult consumed intact. Large cons...

A sail jellyfish is a free-swimming cnidarian known for a prominent, sail-like ridge along its bell. This structure helps it catch currents and move through open water. Sail jel...

Jane Goodall is a British primatologist and anthropologist widely recognized for her long-term study of wild chimpanzees in Gombe Stream National Park, Tanzania.

Yes, a new ocean is slowly forming in eastern Africa. The East African Rift System is pulling the Somali Plate away from the Nubian Plate. Over millions of years, this could cre...

Cyril DeGrasse Tyson is an American astrophysicist, author, and science communicator. He is widely known for hosting television series and documentaries focused on space and sci...

String theory proposes that fundamental particles are not point-like dots but tiny vibrating strings. Different vibrational patterns correspond to different particles, aiming to...

No, Neil deGrasse Tyson has not won a Nobel Prize. He is a prominent astrophysicist, science communicator, and director of the Hayden Planetarium, but he has not been awarded a...

The northern lights are caused by charged particles from the Sun interacting with Earth's magnetosphere. During strong geomagnetic storms, the auroral oval expands and shifts eq...

Scientists have confirmed the discovery of a previously unknown snake species in a remote tropical region. The identification was based on distinct scale patterns, genetic analy...

Mount Kilauea in Hawaii has erupted multiple times in recorded history. The volcano sits on the Big Island and is one of the most active volcanoes on Earth. Eruptions often occu...

Scientists have no confirmed examples of extraterrestrial life, so any description of aliens is based on theory. NASA and SETI note that life elsewhere may follow different evol...

Solar flares are sudden bursts of electromagnetic radiation from the Sun. They release intense X rays and ultraviolet light that can travel to Earth at the speed of light.

In 2018, researchers announced the discovery of a new dinosaur species based on fossils found in Argentina. The find added to the growing record of Late Cretaceous theropods in...

A September lunar eclipse occurs when the Moon passes through Earth's shadow. The Moon can appear dark or reddish, depending on how deeply it enters the shadow. This type of ecl...

A fossil monotreme recently was found in ancient river deposits in Australia. The specimen preserves parts of the jaw and teeth, helping scientists identify it as a monotreme. R...

Whales are fully aquatic marine mammals belonging to the order Cetacea. They breathe air, are warm blooded, nurse their young with milk, and range from the 2.7 meter long dwarf...

Venus is the planet with retrograde rotation in our solar system. It spins slowly in the opposite direction to most planets, meaning the Sun rises in the west and sets in the ea...

A dinosaur egg fossil typically preserves a mineralized shell, often with internal cavities where the original egg contents once were. In rare cases, the fossil contains embryon...

Bill Nye was born on November 27, 1955. He is an American science communicator known for making science accessible to general audiences.

Intelligence quotient (IQ) tests measure reasoning, problem-solving, and pattern recognition. Scores are normalized so the average is 100, with higher scores indicating stronger...

Many scientists consider it unlikely that Earth is the only planet with life. The Milky Way contains billions of Earth-sized planets in habitable zones, where liquid water could...

Venus is often the brightest natural object in the sky after the Sun and Moon. It appears as a very bright, steady point of light, not twinkling like most stars. Many people mis...

Sylvia Earle is an American marine biologist, explorer, and author widely known as "Her Deepness." She has spent decades studying ocean ecosystems and advocating for their prote...

Human dolphin communication refers to the exchange of signals between people and dolphins using sound, gestures, and artificial symbols. Dolphins produce clicks, whistles, and b...

The Sydney funnel-web spider is widely regarded as the deadliest spider in the world. Its venom can be fatal to humans if untreated, and it is native to eastern Australia, inclu...

The crew did not die instantly at the moment of the explosion. The shuttle broke apart 73 seconds after launch, but the crew cabin remained intact and continued moving upward be...

Scientists continue to identify new deep-sea creatures during expeditions to the abyssal and hadal zones. Using remotely operated vehicles and submersibles, researchers document...

Recent fireballs in the sky are bright meteors that outshine Venus and are often seen worldwide. They occur when space rocks enter Earth's atmosphere and burn up due to friction...

Tortoises face extinction mainly from habitat loss, illegal collection, and invasive species. Slow reproduction and long lifespans make populations vulnerable to sudden declines...

A bright meteor is a space rock that enters Earth's atmosphere and burns up, producing a vivid streak of light. When the object is larger or faster, it can shine brighter than t...

The fungus often cited as the most deadly is Ophiocordyceps unilateralis , a parasitic species that infects ants and manipulates their behavior. Other highly lethal fungi includ...

Extinct bats are bat species that no longer exist on Earth. They include animals from the order Chiroptera, the only mammals capable of true powered flight. Extinction means the...

Researchers have identified a previously unknown marine species during a deep-sea expedition. The organism was found in a remote ocean region, adding to the catalog of life form...

Human animal hybrid research refers to studies that combine human cells with animal embryos or tissues. In Japan, this work often focuses on creating chimeric embryos to study d...

A solar eclipse officially begins at first contact, when the Moon's shadow first touches Earth. For observers, this is the moment the Moon starts to cover the Sun. The exact sta...

In 2023, a small metallic sphere was recovered from the ocean floor near the coast of Papua New Guinea during a research expedition. The object, roughly the size of a small ball...

Animals from space include fruit flies, mice, dogs, cats, frogs, and chimpanzees. The Soviet Union and the United States sent many species aboard rockets and space stations to s...

A crescent moon occurs when less than half of the Moon’s visible disk is illuminated by the Sun. From Earth, this creates a thin, curved shape often called a waxing or waning...

Bill Nye was born on November 27, 1955, in Washington, D.C. He studied mechanical engineering at Cornell University, where he took classes with astronomer Carl Sagan. Before bec...

Koalas became infected with chlamydia through exposure to bacteria transmitted from other animals and environmental contamination. The disease is caused by the bacterium Chlamyd...

On a clear night in New Jersey, observers can typically see the Moon, bright planets such as Venus or Jupiter, and prominent constellations like Orion or Ursa Major. Visibility...

An ape face human refers to a human-like face with features commonly associated with apes, such as a prominent brow ridge, flat nasal bridge, and strong jaw. In everyday languag...

The germs bread experiment is a simple test that shows how bacteria and mold spread on bread. Slices are touched with unwashed hands, soap-washed hands, hand sanitizer, and a co...

Perseverance rover photos reveal Jezero Crater’s terrain, ancient river delta features, and rock textures. Cameras on the rover and helicopter Ingenuity capture panoramic view...

Identical twins, or monozygotic twins, develop from a single fertilized egg that splits into two embryos. They share nearly identical DNA. In humans, this process happens by cha...

The Last of Us depicts a global pandemic caused by a mutated Cordyceps fungus. The fungus infects humans, takes control of their behavior, and eventually kills them. It spreads...

The next total solar eclipse visible from the contiguous United States will occur on August 12, 2044, with the path crossing parts of Montana and the Dakotas. Before that, an an...

In neuroscience, memory is stored as patterns of synaptic connections and molecular changes in neurons. The idea that a physical substance itself could hold or transfer memories...

Five planets aligned refers to a period when Mercury, Venus, Mars, Jupiter, and Saturn appear in a row in the sky. This happens because their orbits place them on the same side...

The Sun can look red or orange when it is low on the horizon. At that angle, sunlight travels through more of Earth's atmosphere. Shorter blue wavelengths scatter away, leaving...

The Tasmanian tiger, or thylacine, was a carnivorous marsupial native to Australia and Tasmania. It had a dog-like body with distinctive striped lower back. The last known thyla...

The Titan submersible, operated by OceanGate Expeditions, suffered a catastrophic implosion in the North Atlantic on June 18, 2023, while attempting to reach the wreck of the Ti...

Moon phases are the changing shapes of the moon as seen from Earth, caused by its orbit around our planet. The eight primary phases follow a predictable cycle lasting about 29.5...

Velella velella is a small, blue, sail-like hydrozoan that floats on the ocean surface. Often called by-the-wind sailors, they are related to jellyfish and can wash ashore in la...

All planets in our solar system can exhibit retrograde motion. From Earth, planets periodically appear to reverse direction against the background stars. This apparent backward...

Prehistoric scorpion size varied widely, with some ancient species far exceeding modern scorpions. The largest known scorpion, Pulmonoscorpius kirktonensis , reached about 70 ce...

High bacteria counts can signal contamination from sewage or stormwater. This may increase risks for swimmers and shellfish consumers. Health agencies test water to protect publ...

In a solar eclipse, the Moon passes between the Sun and Earth, casting a shadow on our planet. In a lunar eclipse, Earth moves between the Sun and Moon, and Earth’s shadow fal...

A human monkey chimera is an embryo formed by introducing human cells into a monkey host, usually a macaque. The goal is to study early development and test whether human cells...

Scientists have documented several new creatures found in 2024, including small marine invertebrates, amphibians, and insects. Many live in isolated caves, deep reefs, or high-a...

Russia hosts numerous active volcanoes, concentrated mainly in the Kamchatka Peninsula and the Kuril Islands. These volcanoes are part of the Pacific Ring of Fire and are monito...

UFO images are photographs, videos, or radar captures that show objects or phenomena in the sky that observers cannot immediately identify. They are often taken by civilians, pi...

In 1970, a surgical team transplanted the head of one rhesus monkey onto the body of another. The procedure aimed to study whether a living organism could sustain a transplanted...

A dinosaur egg discovery provides direct evidence of reproduction, nesting habits, and early development in extinct species. Paleontologists examine shell thickness, shape, and...

People see color thanks to three types of cone cells in the retina. These cones respond to short, medium, and long wavelengths of light. The brain mixes these signals into the c...

When we see Saturn going through a period of apparent retrograde motion, it means the planet appears to reverse direction against the background stars for several weeks. This is...

The lunar cycle is the continuous sequence of phases the Moon passes through as it orbits Earth, taking about 29.5 days to complete one full cycle.

Unicorns, as horned horse-like creatures, did not exist as real animals. No fossil or biological evidence supports their existence. The idea comes from myths and misinterpreted...

The biggest sinkhole ever recorded is Xiaozhai Tiankeng in Chongqing, China. It measures roughly 662 meters deep and 626 meters wide, making it one of the most massive sinkholes...

The highest temperature ever recorded in Antarctica was 18.3°C (64.9°F), measured at the Esperanza Base on the Antarctic Peninsula on 6 February 2020. This reading was verifie...

In 2025, several species were formally classified as extinct by scientific authorities. These declarations are based on extensive surveys that failed to find surviving individua...

For most people, a single ant cannot kill a human. Common ants bite or sting for defense, causing pain, swelling, or mild itching that fades within hours. Death from one ant is...

Recent observations confirm several Earth-sized exoplanets orbiting within the habitable zones of nearby red dwarf stars. These findings help astronomers refine models of planet...

Yes, alligators are real, living reptiles in the family Alligatoridae. They are large, armored predators with broad snouts and powerful tails. Their populations are monitored by...

Most mammals have two ears, but the star-nosed mole is often described as having only one ear because its two nostrils are fused into a single, highly sensitive appendage. This...

A zombie starfish is a sea star that continues to move or appear alive after losing most of its body, often due to injury, disease, or predation. The term highlights how these a...

Several theropods and sauropods grew larger than Tyrannosaurus rex. Spinosaurus, for example, is estimated to have reached lengths of 12 to 15 meters, making it one of the longe...

The next major comet likely to become visible to the naked eye is Comet C/2023 A3 (Tsuchinshan–ATLAS). It is expected to reach peak brightness in October 2024, according to NA...

Yes, you can look at a lunar eclipse without glasses. Unlike solar eclipses, lunar eclipses are safe to view with the naked eye because the Moon only reflects sunlight and never...

Geomagnetic storms are disturbances in Earth's magnetosphere caused by solar wind and coronal mass ejections. They can disrupt radio signals, power grids, and satellite operatio...

Many theropod dinosaurs, including tyrannosaurs and abelisaurs, had proportionally short forelimbs. Their arms were small relative to their large skulls and powerful bodies, yet...

The giant squid has the largest eyes of any living animal. Its eyes can reach about 27 centimeters (10.6 inches) in diameter, roughly the size of a dinner plate. This makes the...

A solar eclipse happens when the Moon passes between Earth and the Sun, blocking sunlight partially or completely. This alignment occurs during a new moon phase and is visible o...

Yes, scientists have found dinosaur eggs and eggshells in many regions worldwide. Fossil discoveries in places such as China, Argentina, and Montana have revealed well-preserved...

K2 18b is located about 124 light years from Earth, which is roughly 1.17 trillion kilometers or 727 trillion miles. This distance is based on observations from the Kepler missi...

Tyrannosaurus rex had unusually short forelimbs compared to its massive body. Adults typically had arms about 1 meter (3.3 feet) long, with two-fingered hands and robust humeri,...

Venus is often the brightest natural object in the night sky after the Moon. It is visible because it reflects sunlight while orbiting closer to the Sun than Earth.

Dire wolves (Canis dirus) lived in the Americas during the Late Pleistocene, overlapping with early human populations. Fossils show they were common across North and South Ameri...

A meteor fireball video records a bright meteor that outshines the planet Venus. These events happen when small space rocks enter Earth's atmosphere and burn up due to friction....

The term inventor of DNA usually refers to the scientists who uncovered its structure and developed tools to read and edit it. James Watson and Francis Crick are most often cred...

Researchers study dinosaur revival to learn how ancient animals grew, reproduced, and adapted. By testing biological limits, they aim to improve genetics, embryology, and conser...

Researchers have confirmed the existence of a previously unknown shark species based on morphological and genetic analysis. The discovery was made from specimens collected durin...

The giant squid has been known to sailors and fishermen for centuries, with early accounts describing massive sea creatures. The first detailed scientific description appeared i...

The end of dinosaurs is linked to a mass extinction about 66 million years ago at the close of the Cretaceous period. A widely accepted explanation is a large asteroid impact co...

Mauna Loa is one of Earth’s most active volcanoes and the largest shield volcano on Earth. It sits on the Big Island of Hawaii and is monitored closely by the U.S. Geological...

Ocean Ramsey is a marine conservationist, freediver, and public educator known for close encounters with sharks and large marine animals. She gained attention for diving with gr...

Episode 3 of the series Alien Earth focuses on the scientific search for habitable planets beyond our solar system. It explains how astronomers detect worlds that could support...

Stephen Hawking before death continued to work on theoretical physics, communicate through assistive technology, and publish popular science books. In his later years, he focuse...

The oldest known natural mummy is a human body preserved by environmental conditions without intentional embalming. Such remains form when dryness, cold, or acidic soil stops de...

Ghosts are usually described as the spirits or souls of deceased people that appear in a visible or sensory form. In folklore and popular culture, they are often tied to unfinis...

In toxicology, the most poisonous substances are measured by how little is needed to cause death. Botulinum toxin, produced by the bacterium Clostridium botulinum, is widely reg...

The first detailed descriptions of the giraffe come from ancient civilizations in North Africa and the Mediterranean. The Romans encountered the animal during campaigns in North...

A planetary alignment in July 2025 occurs when several planets appear close together in the sky from Earth’s perspective. This event involves Mercury, Venus, Mars, Jupiter, an...

Yes, satellites fall to Earth regularly. Most burn up during reentry, but larger pieces can survive and reach the surface. These events are tracked by space agencies and debris...

Yellowstone sits above a hotspot where partially molten rock rises from deep in the mantle. The upper crust hosts a large zone of partially molten material that feeds the calder...

Los Angeles will not see another total solar eclipse for many decades. The next total solar eclipse visible from the contiguous United States occurs on August 12, 2045, but Los...

IQ, or Intelligence Quotient, is a score derived from standardized tests designed to measure human cognitive abilities. These tests assess skills such as pattern recognition, me...

People with two heads and one body are a rare type of conjoined twin known as dicephalic parapagus. In this condition, a single body has two distinct heads, each with its own br...

Flying cats with wings refer to the idea of cats having wing-like structures that allow them to glide or fly. In reality, no naturally occurring cat species has true wings. The...

Prehistoric scorpions are extinct and ancient relatives of modern scorpions that lived hundreds of millions of years ago. They belong to the order Scorpiones and are part of the...

A rabbit virus refers to any pathogen that infects rabbits, including Rabbit Hemorrhagic Disease Virus and Myxoma virus. These viruses can cause respiratory, digestive, or syste...

Some cosmological models propose that our universe could be the interior of a black hole. In these ideas, the Big Bang resembles the formation of a singularity, and the observab...

A planetary parade is an astronomical event in which several planets appear in the same region of the sky. In January 2025, observers can see Mercury, Venus, Mars, Jupiter, and...

A solar eclipse occurs when the Moon passes between Earth and the Sun, briefly darkening part of the sky. Tomorrow, a partial or total eclipse will be visible across selected re...

Mysterious dinosaurs are species known from fragmentary fossils, rare traces, or disputed specimens that leave major questions unanswered. Paleontologists use limited bones, tee...

Egg fossils are preserved eggshells or eggs containing embryos, often found in sedimentary rock. They form when shells are buried quickly, preventing decay and allowing mineral-...

The longest living spider species is the trapdoor spider, with some individuals documented to live over 40 years. Most spiders live only one to two years, making these extended...

Jupiter appears in the night sky near the ecliptic, the apparent path of the Sun, Moon, and planets. Its position shifts slowly each night as Earth moves in its orbit, so it can...

An ice age mammoth is a large, extinct elephant that lived during the Pleistocene epoch, roughly 2.6 million to 11,700 years ago. The woolly mammoth is the most well known speci...

NASA and ESA regularly publish new pictures of Mars from orbiters and surface rovers. These images show detailed surface features, dust patterns, and geological formations captu...

Mercury is classified as a planet because it orbits the Sun, has enough mass for a nearly round shape, and has cleared its orbital neighborhood of most debris. These criteria ar...

The strawberry moon is the traditional name for the full moon that occurs in June. NASA notes that the name comes from the short strawberry harvesting season in North America. I...

Paleontologists have identified a new theropod species that surpasses Tyrannosaurus rex in estimated body length and mass. The discovery adds a major predator to the Late Cretac...

Australia's warm climate supports higher metabolic rates in many insects. Stable heat and long summers allow bugs to grow larger and remain active for more months of the year.

Scientists have identified a previously unknown parasite, a microscopic organism that lives on or inside a host and derives nutrients at the host's expense. The discovery was do...

NASA's Perseverance rover landed on Mars on February 18, 2021. It touched down in Jezero Crater, a site chosen for its ancient river delta and potential to preserve signs of pas...

A picture of Saturn through a telescope typically reveals a pale yellowish disk with a thin, sharp ring system tilted at an angle. In moderate seeing, you can often see the divi...

A black hole is a region of spacetime where gravity is so intense that nothing, including light, can escape once it crosses the event horizon. Black holes form from the collapse...

The brain eating amoeba refers to Naegleria fowleri, a microscopic organism found in warm freshwater. In Arkansas, it has been detected in lakes, rivers, and poorly maintained s...

Solar eclipses occur when the Moon passes between Earth and the Sun, blocking sunlight partially or fully. They happen several times each year, but total solar eclipses visible...

The planet known for lava rain is Venus. Its surface is dominated by volcanic plains and recent lava flows, with extreme heat that keeps some materials molten. While true "rain"...

Jupiter is usually visible after it rises above the horizon and before it sets. The exact time depends on your location and the current date, so you need to check a local astron...

Many people search this phrase after remembering a bright, moving, or unexplained light they saw at night. Reports often describe hovering, rapid direction changes, or silent ob...

A six-legged octopus is an octopus with only six arms instead of the usual eight. The term is sometimes used informally for species or individuals with missing or reduced arms,...

The Man in the Moon is a pattern of dark plains and lighter highlands on the Moon’s surface that, when viewed from Earth, resembles a human face. It is not a physical figure b...

A fish thought to be extinct is a species that has not been observed for decades or longer, leading scientists to assume it has disappeared. These species are often last documen...

In this context, "will humanity end" refers to the possibility of human extinction or civilizational collapse. Scientists study this through risk analysis, probability models, a...

The December solstice occurs when the North Pole is tilted farthest from the Sun, around December 21 or 22 each year. It marks the beginning of astronomical winter in the northe...

An alien is any life form that originates outside Earth. In science, the term refers to organisms that evolved on another world or in a different environment than our planet. Re...

The blue-ringed octopus is widely regarded as the most dangerous octopus in the world. These small cephalopods carry a powerful neurotoxin called tetrodotoxin, which can cause p...

The goblin shark is not extinct. It is classified as Least Concern by the IUCN, with no evidence of a major population decline. Because it lives in deep ocean waters, it is rare...

Claims that aliens are currently living or hiding on Earth appear in movies and online posts, but authoritative scientific bodies and investigations find no verified evidence fo...

The biggest dinosaur fossils ever found come from a handful of extraordinary individuals discovered across Argentina, Argentina, and the United States. These specimens belong to...

Robert Ballard is a marine geologist and oceanographer best known for locating the wreck of the RMS Titanic in 1985, the German battleship Bismarck in 1989, and numerous deep-se...

Biofilms are structured communities of microorganisms encapsulated in a self-produced extracellular polymeric substance (EPS) that adheres to surfaces and interfaces. They form...

A space hurricane is a large, swirling plasma phenomenon that occurs in Earth’s upper atmosphere and near-Earth space. Unlike tropical cyclones, it forms in the magnetosphere...

This guide lists confirmed solar eclipse dates for the United States, explains eclipse types, and shows where and how to safely observe them. It is updated for clarity and long-...

NASA investigates reports of airborne anomalies as part of its mission to understand phenomena in Earth’s atmosphere and beyond, while clarifying that most observations have c...

When people ask how dire wolves were brought back, they are usually asking about de-extinction science, not a single movie-style revival event. Dire wolves went extinct about 13...

The question what is the biggest fossil ever found points not to a single specimen but to different champions across life’s history. Unlike living animals, fossils cannot be w...

There is no verified evidence of blue-colored dogs in or near the Chernobyl Exclusion Zone. The claim often appears in speculative articles and social media posts, but photograp...

A real blue moon is commonly used to describe the second full moon in a single calendar month, though the phrase has also referred to actual pale blue-colored moons caused by vo...

Bermuda is a British Overseas Territory in the North Atlantic with a long history of marine activity and a modest but documented record of shark encounters. This article summari...

There are eight widely recognized moon phases, defined by the Moon’s changing geometry relative to the Sun and Earth. These recurring stages—new, waxing crescent, first quar...

The universe in a black hole theory proposes that our universe could be the interior of a black hole within a larger cosmos. This idea reframes familiar cosmological concepts by...

Pleistocene wolves belonged to the genus Canis and inhabited northern Eurasia and North America between roughly 2.6 million and 11,700 years ago. Their size was shaped by cold c...

The February 2026 eclipse is a partial solar eclipse that occurs on February 17, 2026. For most regions that see any eclipse, the event will be partial, with the Moon covering a...

Comets are ancient icy bodies that brighten as they approach the Sun, producing visible tails that have fascinated skywatchers for millennia. This guide explains what comets are...

The short answer is gravity. Newton’s law of universal gravitation and Einstein’s description of curved spacetime explain how the Moon is held in a roughly stable orbit. In...

Group 7 in the periodic table refers to the halogens: fluorine, chlorine, bromine, iodine, and astatine. These nonmetals share strong reactivity, high electronegativity, and a t...

Looking directly at the Sun without proper eye protection is harmful at any time, including during a solar eclipse. During a partial or annular eclipse, and even in the minutes...

A season eclipse occurs when a new or full moon aligns closely with one of the two nodes where the Moon’s orbit crosses the ecliptic near a seasonal turning point—typically...

Stars that resemble the Sun share key traits such as mass, temperature, age, and stable output, making them valuable benchmarks for studying solar behavior and planetary habitab...

A UFO sighting hoax is any reported unidentified aerial phenomenon that is intentionally fabricated, materially misrepresented, or materially misrepresented as extraterrestrial...

Chicken can contain metals such as lead, cadmium, arsenic, and mercury at varying levels. These metals originate from both natural geological sources and human activities. Soil...

A UFO sighting is any report of an unidentified aerial phenomenon observed in the sky. By definition, “unidentified” means the observer cannot immediately recognize what the...

Ted Dawson is a translational neuroscientist known for work on Parkinson’s disease and broader neurodegeneration. He focuses on understanding why specific neurons in the brain...

The term brown galaxy most often refers to the Brown Sh galaxy, a nearby dwarf irregular galaxy that serves as a benchmark for studying low-metallicity, star-forming systems. It...

An Armageddon asteroid describes a large asteroid with the potential to cause severe regional or global damage were it to impact Earth. This explainer clarifies impact history,...

Does Uranus stink? The short answer is that it would smell harsh and unpleasant to humans, but not because of a simple rotten-egg odor you can easily name. Scientists describe i...

Asteroid 2036 is a near-Earth object whose orbital characteristics and close-approach history make it useful for planetary defense research and risk communication. This profile...

The oldest confirmed bird in the world is Archaeopteryx lithographica , known from fossils found in Late Jurassic limestone in southern Germany. Dated to approximately 150 milli...

The next solar eclipse with wide public interest in the United States is a total solar eclipse spanning Mexico, the United States, and Canada on April 8, 2024. This event offers...

Speculation about a human-dinosaur hybrid in Jurassic World Rebirth reflects enduring fascination with de-extinction and genetic engineering, yet such a creature exists only in...

The phases of the moon sentence describes how the moon appears to change shape through the month because of its position relative to the Earth and the Sun. These shifts are not...

Yes, other animals can have identical twins, but it is neither common nor universal across species. Identical twins arise when a single fertilized egg splits after conception, p...

The question ‘what is the biggest parasite in the world’ seems straightforward, but defining size introduces nuance. Length, weight, and physical volume each tell a differen...

A blind eclipse occurs when a solar eclipse is visible from a location where people cannot see it, such as due to weather, terrain, or timing. It also refers to the period of da...

A fossilized embryo is the preserved remains of a developing organism from a past geological period, captured at one stage of its prenatal development. These fossils offer a rar...

Charles Thorne is a name that appears in multiple domains, most notably in physics and engineering. This profile focuses on verifiable facts, distinguishing the physicist associ...

A Down syndrome model is any system used to study Down syndrome in a controlled way, including cells, animals, and computational simulations. These models help researchers under...

Cutting a worm in half does not automatically mean it will die. For some species, such as planarians, each half can regenerate a full body and survive. For others, including mos...

The asteroid impact 66 million years ago triggered immediate, continent-scale devastation. In the minutes and hours following the Chicxulub collision in what is now the Yucatán...

Methone is a small inner moon of Saturn, discovered in 2004 by the Cassini imaging team during the spacecraft’s arrival at the planet. Roughly 3–4 kilometers in diameter, it...

Gibbs rule #1 is a foundational principle in statistical mechanics and information theory that connects probability, entropy, and expected value. In its most common form, it sta...

Galaxy gas refers to the diffuse gas that exists between stars in a galaxy, including hydrogen and helium along with heavier elements. It is distinct from the gas found in stars...

An eclipse occurs when one celestial body moves into the shadow of another. For an observer on Earth, the most common discussion is about the Sun and Moon: a solar eclipse happe...

The 1988 film Gorillas in the Mist starring Sigourney Weaver dramatizes the life of primatologist Dian Fossey. The movie is not based on Jane Goodall, although both women were p...

Few topics compress a powerful mix of fear, curiosity, and risk as tightly as the idea of a shark bite man. While any interaction between a human and a shark that results in inj...

Meteorite NJ refers to meteorites found in New Jersey, ranging from small fusion-crusted stones to historic falls recovered decades ago. This evergreen explainer covers how mete...

A ray from a perfect match describes a ray of light that originates from a precise, ideal alignment between a light source and a target plane, where the geometry minimizes disto...

Are scientists bringing back the moa? The short answer is not yet, but serious research is exploring whether de-extinction could one day restore these extinct New Zealand birds....

Gibbs Rule 45 is a concise thermodynamic relationship that describes how the number of degrees of freedom (F) in a system depends on the number of components (C) and phases (P)...

A meteor hit Mexico when a space rock enters Earth’s atmosphere above or near the country and produces observable effects that are examined and confirmed by experts. Verificat...

The Bottle Top Challenge is a recurring viral trend in which a person balances a bottle cap on their forehead, strikes the cap with a coin, and attempts to flick the cap into th...

Antarctica scientists investigate ice, ocean, atmosphere, and life to understand Earth’s climate history and future change. Researchers from many countries work at remote stat...

A blood moon photograph captures the Moon appearing deep red or coppery during a total lunar eclipse. This color occurs when the Earth comes between the Sun and the Moon, castin...

T rex found in South Dakota represents some of the most complete and scientifically valuable Tyrannosaurus specimens ever recovered. The state's Hell Creek Formation exposures h...

Keratin and cancer are topics often searched together, yet the relationship is nuanced and frequently misunderstood. This evergreen explainer clarifies what keratin is, its norm...