NASA’s MAVEN spacecraft has provided the first direct evidence of atmospheric sputtering on Mars, revealing how solar wind ...

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 ...

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

A pull in the right direction ...

Mars has an active, electrically charged surface where dust storms and spinning dust devils regularly move and reshape the landscape. Mars is often portrayed as a dry, empty world, but the planet is ...

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

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

A study by scientists at Penn State and NASA shows that intact biomolecules from dormant microbes break down much more slowly ...

Researchers believe Perseverance recorded 55 instances of "mini lightning," providing the first sound evidence of Martian electrical activity. The lightning occurs during dust storms and dust devils, ...

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

NASA's plans for Mars sample return are effectively cancelled as part of a bill approved by the U.S. Congress, ending efforts ...

NASA’s Mars Sample Return program faces opposition from planetary scientists following proposed cancellation, with concerns raised over Perseverance samples, future Mars missions, and international ...