Learn more about the hunt for bacteria on Mars and how astronauts will need to make sure they aren't bringing any dormant ...

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.

NASA’s Perseverance rover has uncovered the most definitive signs yet of an ancient Martian shoreline. The discovery, found ...

Mars is absolutely dripping with evidence that the red planet was once a striking blue, complete with glistening lakes, ...

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

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

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

The Curiosity Mars rover photographed more rocks that are shaped like coral on the red planet's surface. Researchers said the rocks were evidence that at one point water was on Mars. The Curiosity ...

Advances in technology have reopened the debate over terraforming Mars, shifting it from an impossible dream to a long-term scientific and ethical question.