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By Katie Hunt, CNN (CNN) — An invisible molecular cloud that could shed light on how stars and planets form has been detected surprisingly close to Earth. Named Eos after the Greek goddess of the dawn, the cloud of gas would appear huge in the night sky if visible to the naked eye. It measures

By Jackie Wattles, CNN (CNN) — Legends of young heroes fighting lions to the death appear in Roman records and artwork, but scant physical evidence of these beastly battles exists. Perhaps, that is, until now. A new study sheds light on the story of a young man, likely between the ages of 26 and 35,

By Amanda Schupak, CNN (CNN) — About 50 million years ago, a small bird waded along a lakeshore in what today is central Oregon. A worm wriggled at its feet. The bird appeared to probe the silty earth with its beak, once, twice, three times, looking for food. On the fourth try, the bird may

By Jackie Wattles, CNN (CNN) — The head of the US National Science Foundation, a $9 billion agency charged with advancing discoveries across the scientific spectrum, resigned Thursday amid sweeping changes spearheaded by the current Trump administration. NSF Director Sethuraman Panchanathan has led the agency since he was selected by President Donald Trump during his

By Ella Nilsen, Laura Paddison, CNN (CNN) — President Donald Trump is trying to fast track a brand new, highly controversial industry – mining critical minerals in the deep sea. Trump signed an executive order Thursday directing the secretaries of Interior and Commerce to speed up the exploration and permitting for deep sea mining in

By Andrew Freedman, CNN (CNN) — The Trump administration canceled the lease for its top climate monitoring lab, located in New York City, as of May 31, according to an email seen by CNN. In the email, the director of the NASA Goddard Spaceflight Center in Maryland informed employees of the impending closure of the

By Katie Hunt, CNN (CNN) — An almost overlooked fossil discovered in a Brazilian museum collection has revealed the oldest ant specimen known to science, according to new research. The prehistoric ant lived among dinosaurs 113 million years ago — several millions of years before previously found fossilized ants — and had an unusual way

By Jack Guy, CNN London (CNN) — Archaeologists working at a site in south Wales have uncovered dozens of skeletons – mostly women – which offer a “window into a really poorly understood period of history.” Dating from the Early Medieval era, which ran from 400 to 1100 AD, the skeletons are from “a period

By Ashley Strickland, CNN (CNN) — A skeleton recovered from an intriguing Roman-era cemetery in England may mark the first physical evidence of combat between gladiators and animals, according to new research. The skeleton of a man, who was between the ages of 26 and 35 when he died, was found with bite marks from

By Andrew Freedman, CNN (CNN) — The Trump administration quietly released key climate change data last week that has historically been accompanied by expert analysis from government scientists at the National Oceanic and Atmospheric Administration, CNN has learned. The lack of context minimized the government’s own findings that atmospheric levels of carbon dioxide — the

By Kameryn Griesser and Ashley Strickland, CNN (CNN) — After months without a meteor shower, sky-gazers now have a reason to keep their chins up — the Lyrids are here to kick off the season. The Lyrids have graced the sky since April 17 and will hang around until Saturday, with the densest concentration of

By Ashley Strickland, CNN (CNN) — When astronomers search for evidence of life beyond Earth, what signs are they seeking? Would clues be traced to microfossils trapped within ancient Martian rocks, swim in waters of an ocean world, or lead to an Earth-like twin thought of as Planet B? Or perhaps a technosignature, a signal

By Ashley Strickland, CNN (CNN) — Longtime NASA astronaut Don Pettit, who has ventured to space four times, returned to Earth on Saturday night from the International Space Station. Pettit, who turned 70 on Sunday, landed at 9:20 p.m. ET in a Soyuz spacecraft with Roscosmos cosmonauts Alexey Ovchinin and Ivan Vagner near Zhezkazgan, Kazakhstan,

By Ashley Strickland, CNN (CNN) — When a new comet appears in the sky, there is often excitement. But things don’t always end well for the ancient celestial objects, made of ice, frozen gases and rock, as they near the sun — and an untimely demise appears to hold true for Comet C/2025 F2 (SWAN).

By Taylor Nicioli, CNN (CNN) — Seismologist Deborah Kilb was wading through California earthquake records from the past four decades when she noticed something odd — a series of deep earthquakes that had occurred under the Sierra Nevada at a depth where Earth’s crust would typically be too hot and high pressure for seismic activity.