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.

It’s a virtual mission to Mars. Our first mission to Mars may still be a ways off, but people can take a virtual tour of the Red Planet thanks to a brand new video by the Mars Express Orbiter. People ...

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

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

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. For more than 20 years, the European Space Agency's (ESA) Mars Express orbiter has been imaging ...

Until recently, Mars was studied only through telescopes and some data that was recorded from early spacecraft. It was thought that Mars' polar regions were the only significant reservoirs of ice, ...

Mars, now a dusty world of rusted rock and thin air, once carried enough water to transform its face into something far more familiar. New mapping of ancient river systems indicates that a vast ...

Since humans first started observing Mars, the existence of nocturnal ice clouds on the Red Planet has been known, primarily through daytime observations and sophisticated climate models. Twilight ...

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