Dark “slope streaks,” likely resulting from dust avalanches, stretch across an area of Mars called Acheron Fossae in this ...

Here are some of our favorite objects on Mars that look like they don't belong on a dead and dusty planet. Many of these are a result of pareidolia — the tendency for humans to seek familiar ...

Your blood is also red because of a mixture of iron and oxygen in a molecule called hemoglobin. So in a way, the ancient connection between the planet Mars and blood wasn’t completely wrong. Rust, ...

The secret history of water on Mars: What ancient climate change tells us about the future on Earth Mars’ atmosphere was once thick and wet, with raindrops that were so tiny they couldn’t even ...

More than 3 billion years ago, Mars was warm, wet, and had an atmosphere that could have supported life. This artist's rendering shows what the planet may have looked like with global oceans based ...

A conception of what Mars' Jezero Crater may have looked like billions of years ago. Credit: NASA / JPL-Caltech It's clear that Mars once gushed with water.

Two new papers have provided a giant map outlining all the places we've discovered ancient trace of water on Mars.

Deep beneath NASA’s InSight lander, an ocean’s worth of liquid water may be trapped in rocky fissures, suggests a recent study of data recorded during more than 1,300 Marsquakes.

When you look at Mars today you see a mostly dry, dusty orb with a thin atmosphere, lots of wind, and a mysterious history. That … ...

Ancient Mars meets the environmental requirements for life: liquid water; access to “biogenic” elements like carbon, hydrogen, oxygen, nitrogen and a dozen others (which are still there today ...

Here are some of our favorite objects on Mars that look like they don't belong on a dead and dusty planet.