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

“The presence of liquid water [on Mars] is a broad topic that includes rains, rivers, lakes, as well as oceans,” says Ezat ...

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 ...

A pull in the right direction ...

Mars’s gravity shapes ice ages on Earth, new research finds - 'Without Mars, Earth’s orbit would be missing major climate cycles', computer models reveal ...

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

Despite its small size, Mars seems to have a huge impact on the orbital cycles that govern Earth’s climate, especially those ...

New simulations show red planet affects Milankovitch cycles that shape how solar energy is distributed on Earth over millions ...

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

For anyone curious about what it's like to stand on another planet, Earth offers a few convincing previews. Mars may be 140 ...