What everyone agrees on is that NASA needs a new spacecraft capable of relaying communications from Mars to Earth. This issue ...

Bright white rocks spotted by NASA’s Perseverance rover are rewriting what we thought we knew about ancient Mars. These ...

The discovery suggests that parts of Mars may once have supported tropical-like climates, complete with heavy, sustained rainfall.

The Perseverance rover is continuing its mission to find clues about the geological past of Mars. The rover’s main goals are ...

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

Bright white rocks found by NASA’s Perseverance rover hint at ancient Martian rain lasting millions of years, raising new questions about how wet Mars once was and what those conditions might mean.

The findings potentially solve the paradox of how liquid water seems to have persisted on Mars even when the climate grew too cold.

"The structures that we were able to identify in the images are clearly the mouth of a river into an ocean." The post ...

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 ...

Arcadia Planitia does not draw attention in the way Mars’s great canyons or volcanoes do. It sits quietly across the northern ...

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

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