Why it matters: While not evidence of life, these discoveries show that ancient Mars had complex organic chemistry, ...

Fresh orbital images and new geological analysis have revealed eight mysterious caves on Mars that appear unusually well suited to protect traces of life. Together, these caverns, portals and ...

Small lakes on ancient Mars may have remained liquid for decades, even with average air temperatures well below freezing. Using a climate model adapted for Martian conditions, a team of researchers ...

A new study has examined how future human missions to Mars could access one of the planet's most vital resources—water. The "Martian aqua: occurrence of water and appraisal of acquisition technologies ...