The Polaris Dawn crew Jared Isaacman, Scott "Kidd" Poteet, Sarah Gillis and Anna Menon explain the experiments conducted during the mission. Also, see a time-lapse of Isaacman's spacewalk. Credit: ...

A new study challenges the dream of water-rich “Hycean” planets like K2-18b, suggesting that most sub-Neptunes lose their water deep into their interiors during formation. Instead of vast oceans, ...

Asteroid Ryugu contained water according to the radioactive decay of lutetium-176 (176Lu) to hafnium-176 (176Hf).

Saturn’s moon Enceladus has long dazzled scientists with its icy plumes that spew water and mysterious organic molecules into space, fueling hopes of a habitable ocean beneath. But new experiments ...

This year’s IAEA Scientific Forum has highlighted how nuclear sciences and isotope hydrology are advancing solutions to global water challenges. The flagship side event at the 69th IAEA General ...

An exoplanet orbiting a dwarf star 124 light-years from Earth made headlines around the world in April 2025. Researchers at ...

Jezero Crater’s rocks reveal three stages of water activity, shifting from hostile acidic fluids to more life-friendly ...

NASA has selected Reid Wiseman, Victor Glover, and Christina Koch, and CSA (Canadian Space Agency) astronaut Jeremy Hansen as the crew for the Artemis 2 mission. They are scheduled to launch no ...

An international team of scientists spent three months at sea drilling into a huge, mysterious reservoir of freshwater under the salty ocean. They hope it could help tackle an increasingly severe ...

Life on the International Space Station isn't always easy. There's not a lot of room, no showers, and no laundry. Photos show ...

Early scientific theories—such as those explaining basic phenomena like gravity, burning, and the movement of molecules in ...

Viking consisted of two twin orbiters and landers, with experimental chambers in the landers to conduct three biology ...