As the four-person crew of Artemis II prepares to launch on a historic mission around the moon as soon as February, some experts are worried about the spacecraft’s heat shield.

NASA’s push to install a nuclear reactor on the Moon by around 2030 is not a sci‑fi stunt or a vanity project. It is a ...

Mars may have been a "blue planet" with an ocean the size of today's Arctic Ocean, a new study suggests. New evidence of ...

Spacecraft orbiting the Red Planet have helped researchers map out an ancient coastline that surrounded a large ocean billions of years ago ...

Ancient shoreline features hint that water on Mars once formed a vast ocean.

A new study has examined how future human missions to Mars could access one of the planet's most vital resources—water. The ...

Mars today is a frozen, dusty desert. But if you look deep inside Valles Marineris, the largest canyon system on Mars and in ...

This doesn’t mean Mars causes ice ages on its own. Orbital cycles are only part of the picture. Earth’s oceans, atmosphere, ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

Even though the Red Planet's atmosphere is thin, wind is still one of Mars' most relentless sculptors.

Our neighbor Mars would hold a significant influence over Earth's climate. New research indicates that its gravity durably ...

CAPE CANAVERAL SPACE FORCE STATION — In the end, poor weather forced Blue Origin on Sunday to scrub its second launch of its New Glenn rocket. It was supposed to send up NASA’s ESCAPADE mission, which ...