As much as 45 oceans’ worth of hydrogen may be in Earth’s core, scientists reported, suggesting most of Earth’s water was acquired during the planet’s formation.

An experiment to quantify the amount of the universe’s lightest element in Earth’s core suggests that the planet’s water has mostly been here since the beginning ...

Analysis of asteroid Bennu samples suggests life's building blocks formed in frozen outer Solar System, not warm asteroid ...

Scientists have found a powerful new way to follow water as it moves around the planet—by tracking subtle “fingerprints” hidden inside its atoms.

General Galactic, co-founded by a former SpaceX engineer, aims to eventually build a propellant station on Mars.

NASA shared that with a more precise shape, it will help astronomers understand data from planets seen passing in front of ...

KENNEDY SPACE CENTER — NASA and SpaceX successfully launched the four-member Crew-11 mission to the International Space Station on Friday morning, after weather forced the scrub of the mission a day ...

As it races back into deep space, interstellar comet 3I/ATLAS has staged an unexpected finale, suddenly brightening and shedding material in a spectacular flare. The outburst, caught by a suite of ...

General Galactic, cofounded by a former SpaceX engineer, plans to test its water-based propellant this fall. If successful, it could help usher in a new era of space travel. That's a big “if.” ...

NASA’s Curiosity rover is attempting one of the rarest kinds of experiments ever tried on Mars, a painstaking chemical test that uses a limited supply of liquid reagents to hunt for traces of complex ...

NASA presents a plan to explore the interior of the Moon using robotic experiments, without the need for astronauts.

After the Red Planet reemerged from conjunction — a period when NASA doesn't communicate with spacecraft because Mars is ...