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By Jonathan AmosScience correspondentImage caption, Returning Mars samples is an immensely complex undertaking that will take years2 hours agoThe quest to return rock samples from Mars to Earth to see if they contain traces of past life…

Weather Update, April 7, 4:00 AM ET: The weather forecast in the story below still largely holds, but things are more unsettled in the southern US, with forecasts now calling for thunderstorms from Dallas up to Indianapolis. So, keep…

Enlarge / A Voyager space probe in a clean room at the Jet Propulsion Laboratory in 1977. Engineers have determined why NASA's Voyager 1 probe has been…

An uncrewed American lander that became the first private spaceship on the moon has met its ultimate end after failing to "wake up," the company that built it said. Houston-based Intuitive Machines said late…

The blast was astonishing.When the Hunga Tonga-Hunga Ha’apai volcano erupted on Jan. 15, it sent shock waves around the planet. The imagery awed earth scientists. And now, researchers have found the eruption pumped enough water vapor…

Dark energy illustration. Credit: Visualization by Frank Summers, Space Telescope Science Institute. Simulation by Martin White, UC Berkeley and Lars Hernquist, Harvard UniversityCould one of the biggest puzzles in astrophysics be solved…

NASA will unveil potential future landing sites for a human return to the surface of the moon, and you can watch the briefing on Space.com today (Aug. 19), or directly on the space agency's website. NASA is serious about getting humans…

Astronomers have discovered the most distant black hole ever observed in X-rays, located in galaxy UHZ1, over 13 billion light-years away. Using data from the Chandra X-ray Observatory and the James Webb Space Telescope, the findings…

Register now for FREE unlimited access to Reuters.comRegisterCAPE CANAVERAL, Fla., Sept 3 (Reuters) - For the second time in five days, NASA on Saturday halted a countdown in progress and postponed a planned attempt to launch the debut…

Somewhere hurtling more than 200 miles above the planet's surface is one of Earth's newest satellites: a tool bag, and it's possible you might be able to spot it with a telescope or good pair of binoculars if you know where to look.The…