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By Katie Hunt, CNN (CNN) — In the depths of Scarisoara cave in Romania sits one of the world’s biggest underground glaciers, a monumental…

By Taylor Nicioli, CNN (CNN) — When scientists with the National Center for Wildlife in Saudi Arabia were surveying caves in search of wildlife…

By Jack Guy, CNN (CNN) — Archaeologists in Spain have uncovered an elephant bone from 2,200 years ago, and they believe it belonged to an…

By Jackie Wattles, CNN (CNN) — The botched test flight of Boeing’s Starliner spacecraft — a protracted saga that kept two astronauts in…

By Jackie Wattles, CNN (CNN) — If all had gone according to plan, four astronauts might have been returning just this week from a…

By Lily Hautau, CNN (CNN) — A “ring of fire” solar eclipse on Tuesday will mark the first eclipse of 2026, but only about 2% of the…

By Jacopo Prisco, Jackie Wattles, CNN (CNN) — As he took his final steps before leaving the moon, Apollo 17 commander Gene Cernan had some…

By Jackie Wattles, CNN (CNN) — A SpaceX capsule carrying four astronauts arrived at the International Space Station on Saturday, bringing the…

By Jacopo Prisco, CNN (CNN) — An exoplanetary system about 116 light-years from Earth could flip the script on how planets form, according to…

By Ella Nilsen, CNN (CNN) — The Trump administration delivered a deadly blow to longstanding US climate policy on Thursday, finalizing rules…

By Ashley Strickland, CNN (CNN) — When solar storms erupt from the sun and reach Earth, their intensity is measured against a historical…

By Lily Hautau, CNN (CNN) — A chunky, squat creature that roamed Earth 307 million years ago is helping scientists understand how plant-eating…

By Asuka Koda, CNN (CNN) — Team USA won silver in mixed doubles curling on Tuesday after reaching the event’s final for the first time during…

By Mindy Weisberger, CNN (CNN) — Picture all of Earth’s oceans, which cover about 70% of the planet and are mostly made of hydrogen. Now…

By Jack Guy, CNN (CNN) — Researchers in Turkey say they have unearthed archaeological evidence that the Romans used human feces in medical…

By Laura Paddison, Samuel Hart, CNN (CNN) — Jessie Diggins is an endurance athlete. The Olympic cross-country skier describes the intensity of…

By Amarachi Orie, CNN (CNN) — Children love to play pretend, holding imaginary tea parties, educating classrooms of teddies or running their…

By Jackie Wattles, Hadas Gold, John Liu, CNN (CNN) — Elon Musk’s ambition to one day settle Mars appears to have taken a back seat to a…

By Jacopo Prisco, CNN (CNN) — Recreating a piece of the universe in a bottle might sound like science fiction, but it’s exactly what Linda…

By Taylor Nicioli, CNN (CNN) — When plant biologist Jing-Yi Lu was earning his bachelor’s degree in Taiwan, he began to take note of the…

By Issy Ronald, CNN London (CNN) — In an idyllic corner of an English field, beneath the lush green grass and yellow buttercups sprouting in…

By Ashley Strickland, CNN (CNN) — There is nothing like the excitement of a rocket launch. I’ll never forget the feeling of being at NASA’s…

By Katie Hunt, Jackie Wattles, Ashley Strickland, CNN (CNN) — NASA is now targeting March for the earliest possible launch of its historic…

By Ella Nilsen, CNN (CNN) — A federal judge on Monday dealt a fifth blow to the Trump administration’s attempts to kill the offshore wind…

By Jackie Wattles, CNN (CNN) — A crucial test of NASA’s towering Space Launch System rocket is underway — marking one of the final steps…

By Ella Nilsen, CNN (CNN) — Electricity costs are climbing nearly everywhere in the United States. But, in recent months, the Trump…

By Ashley Strickland, CNN (CNN) — Look to the sky this weekend for a chance to see February’s wintry full moon, which comes as four…

By Jackie Wattles, CNN (CNN) — Blue Origin announced Friday that it is pausing flights aboard its suborbital space tourism rocket New Shepard.…

By Jacopo Prisco, CNN (CNN) — Scientists have discovered the largest organic molecule containing sulfur — a key ingredient for life — ever…

By Amarachi Orie, CNN (CNN) — As the sea ice melts due to climate change, the trend of polar bears getting thinner and having fewer cubs has…

By Jack Guy, CNN (CNN) — Archaeologists have discovered a 1,400-year-old Zapotec tomb in southern Mexico, adorned with complex carvings, which…

By Katie Hunt, CNN (CNN) — Scientist Veerabhadran Ramanathan yearned for the American dream while growing up in southern India in the 1960s:…

By Ashley Strickland, CNN (CNN) — NASA’s Space Shuttle Challenger lifted off 40 years ago with an unusual crew. In addition to six…

CNN By Kristen Rogers, CNN (CNN) — At the dawn of the nuclear age, scientists created the Doomsday Clock as a symbolic representation of how…

CNN By Kristen Rogers, CNN (CNN) — At the dawn of the nuclear age, scientists created the Doomsday Clock as a symbolic representation of how…

By Kristen Rogers, CNN (CNN) — At the dawn of the nuclear age, scientists created the Doomsday Clock as a symbolic representation of how close…

By Jackie Wattles, CNN (CNN) — When four astronauts begin a historic trip around the moon as soon as February 6, they’ll climb aboard…

By Andrew Freedman, CNN (CNN) — The frigid temperatures, massive snow and deadly ice storm taking shape east of the Rockies might seem to…

By Jacopo Prisco, CNN (CNN) — Space junk falling out of orbit and crashing toward Earth is a growing threat. Indeed, old satellites and…

By Ella Nilsen, CNN (CNN) — As an electricity crunch drives bills higher around the country, big tech companies building power-hungry data…

By Katie Hunt, CNN (CNN) — The outline of a hand made with red pigment on the wall of a cave in Indonesia at least 67,800 years ago may be the…

By Jackie Wattles, CNN (CNN) — Longtime NASA astronaut Suni Williams announced her retirement Tuesday — officially making the unexpectedly…

By Laura Paddison, CNN (CNN) — The world has entered “an era of global water bankruptcy” with irreversible consequences, according to a new…

By Ashley Strickland, CNN (CNN) — Astronomers have long searched for clues that a hidden companion star sits out of view near the red…

CNN, ANTONIO J. OSUNA-MASCARÓ, CURRENT BIOLOGY By Taylor Nicioli, CNN (CNN) — How does a cow scratch an itch on its back? An Austrian cow…

By Ashley Strickland, CNN (CNN) — Powerful solar activity released by the sun reached Earth Monday, causing colorful auroral displays and GPS…

By Taylor Nicioli, CNN (CNN) — How does a cow scratch an itch on its back? An Austrian cow named Veronika has a solution that could change how…

By Ashley Strickland, CNN (CNN) — Artist, inventor and anatomist Leonardo da Vinci was the definition of a Renaissance man — and scientists…

By Jasmin Sykes, CNN (CNN) — Images of plants painted on pottery made up to 8,000 years ago may be the earliest example of humans’…

By Jack Guy, CNN (CNN) — Tyrannosaurus rex lived longer and took more time to reach its maximum size than previously thought, according to a…

By Katie Hunt, CNN (CNN) — On the vast expanse of the Siberian steppe 14,000 years ago, a 2-month-old wolf pup gobbled down some woolly…

CNN By Jackie Wattles, CNN (CNN) — Four astronauts aboard a SpaceX Crew Dragon capsule splashed down early Thursday in the Pacific Ocean,…

By Jackie Wattles, CNN (CNN) — Four astronauts aboard a SpaceX Crew Dragon capsule splashed down early Thursday in the Pacific Ocean, ending a…

CNN By Jackie Wattles, CNN (CNN) — Four astronauts are now en route home from the International Space Station, marking the first time NASA has…

By Jack Guy, CNN (CNN) — Horses can detect fear in humans by smell, becoming more likely to startle and more wary of people who are scared, a…

By Andrew Freedman, CNN (CNN) — Congress is poised to reject President Donald Trump’s “astounding” proposed cuts to the National Oceanic…

By Jackie Wattles, CNN (CNN) — Four astronauts are now en route home from the International Space Station, marking the first time NASA has…

By Jacopo Prisco, CNN (CNN) — Particles from Earth’s atmosphere have been carried into space by solar wind and have been landing on the moon…

By Taylor Nicioli, CNN (CNN) — Dark-eyed junco songbirds have been serenading the University of California, Los Angeles campus for decades as…

By Jackie Wattles, CNN (CNN) — Four astronauts will return from the International Space Station more than a month ahead of schedule after an…

By Andrew Freedman, CNN (CNN) — There were 23 separate billion-dollar weather and climate disasters in the United States last year, adding up…

By Amarachi Orie, CNN (CNN) — Toddlers can pick up new words just by overhearing conversations. Now, new research suggests that some…

By Ashley Strickland, CNN (CNN) — Astronomers may have discovered a previously unknown type of astronomical object, nicknamed “Cloud-9,”…

By Ella Nilsen, CNN (CNN) — President Donald Trump wants the US to sell Venezuela’s oil. But who would buy it? China has long been one of…

By Jackie Wattles, CNN (CNN) — NASA said on Wednesday it was postponing a spacewalk at the International Space Station that was scheduled for…

By Andrew Freedman, Ella Nilsen, Samantha Waldenberg, CNN (CNN) — The Trump administration is pulling the United States out of the bedrock…

By Ashley Strickland, CNN (CNN) — Scientists have detected traces of plant toxins on Stone Age arrowheads that were used by hunter-gatherers in…

By Katie Hunt, CNN (CNN) — Fossils unearthed in Morocco from a little-understood period of human evolution may help scientists resolve a…

By Lianne Kolirin, CNN London (CNN) — An almost complete battle trumpet dating back around 2,000 years to the Iron Age has been unearthed by in…

By Ashley Strickland, CNN (CNN) — Burned bone fragments found in northern Malawi have revealed the oldest cremation pyre ever found in Africa…

By Lily Hautau, CNN (CNN) — The wolf moon, the first full moon of the year, will ring in 2026, gracing the sky this weekend, but the lunar…

By Ella Nilsen, CNN (CNN) — The Trump administration ordered an aging coal-fired power plant in Colorado to stay open on Tuesday, a day before…

By Ashley Strickland, CNN (CNN) — Bright full moons, dazzling meteor shower displays and remarkable total eclipses will give stargazers plenty…

By Katie Hunt, CNN (CNN) — Human evolution’s biggest mystery, which emerged 15 years ago from a 60,000-year-old pinkie finger bone, finally…

By Maggie Koerth, CNN (CNN) — This year is not a particularly white Christmas. Across the United States, families are gathering to enjoy a walk…

By Ashley Strickland, CNN (CNN) — Researchers across the globe put on their sleuthing hats this year to provide answers to questions that have…

By Ella Nilsen, CNN (CNN) — In the latest blow to the US offshore wind industry, the Trump administration announced Monday it is suspending the…

By Ella Nilsen, CNN (CNN) — Residents of mid-Atlantic states like Maryland, New Jersey and Pennsylvania who have spent years plagued by high…

By Mohammed Tawfeeq, CNN (CNN) — Iraq, the historic “land between two rivers,” faces a crisis striking at its identity as the Tigris and…

By Jackie Wattles, CNN (CNN) — Michaela Benthaus, a 33-year-old German aerospace and mechatronics engineer at the European Space Agency, just…

By Ashley Strickland, CNN (CNN) — The Ursid meteor shower, which marks the final celestial event of the year, will peak between Sunday night…

By Taylor Nicioli, CNN (CNN) — Along with its many other innovations, the Roman Empire revolutionized architecture with never-before-seen…

By Laura Paddison, CNN (CNN) — Only a scattering of light penetrates the deep water, more than 300 feet beneath the ocean surface off the coast…

By Jack Guy, CNN London (CNN) — An ancient woman thought to have hailed from sub-Saharan Africa and therefore to have been the first known…

By Ashley Strickland, CNN (CNN) — An interstellar comet first spotted passing through our solar system in July is beginning its departure from…

By Jackie Wattles, CNN (CNN) — A Blue Origin rocket will soon launch carrying an unconventional passenger in a history-making moment made…

By Taylor Nicioli, CNN (CNN) — Contrary to popular depictions of bee nests as large, intricate hives that hang from trees, the majority of bee…

By Jackie Wattles, CNN (CNN) — A monthslong saga featuring tech billionaire Jared Isaacman — President Donald Trump’s on-again, off-again…

By Andrew Freedman, CNN NEW ORLEANS (CNN) — Stress balls were the swag item of choice at the National Center for Atmospheric Research’s booth…

By Chris Mooney, Yumi Asada (CNN) — Bathtubs and pools mislead us about the ocean: Its surface is anything but flat. Seas pile up in some…

By Laura Paddison, CNN (CNN) — Hundreds gathered to say goodbye when 700-year-old Pizol died. The funeral in Switzerland in 2019 was solemn.…

By Katie Hunt, CNN (CNN) — A pod of Pacific white-sided dolphins off the coast of British Columbia have been observed cooperating with orcas, a…

By Chris Mooney Planet-warming pollution rates exploded after the end of World War II. James Watt’s steam engine launched the Industrial Revolution…

By Gina Park, CNN (CNN) — Avid sky-gazers spend all year anticipating the peak of the annual Geminid meteor shower. Now, it’s finally here.…

By Laura Paddison, CNN (CNN) — Nothing on the surface of this scrubby expanse of western Nevada desert, overlooked by towering, craggy…

By Taylor Nicioli, CNN (CNN) — When an ancient ship was unearthed in Scandinavia over 100 years ago, archaeologists started to uncover bits and…

By Ella Nilsen, Andrew Freedman, CNN (CNN) — The Environmental Protection Agency has altered and removed information from its website that…

By Katie Hunt, CNN (CNN) — A field in eastern England has revealed evidence of the earliest known instance of humans creating and controlling…

By Laura Paddison, CNN (CNN) — Swirling underwater “storms” are aggressively melting the ice shelves of two vital Antarctic glaciers, with…

By Jack Guy, CNN (CNN) — Humans are far more monogamous than our primate cousins, but less so than beavers, a new study suggests. Researchers…