Scientists reckon the red hue of Mars might have originated in an earlier period in the planet's past when liquid water was widespread on the surface.… The research, published in Nature ...

A recent study has revealed that the red color of Mars is due to ferrihydrite, an iron oxide mineral. This finding suggests that Mars once had liquid water. NASA’s Perseverance rover ...

As part of the Mars walk, Ronizi climbed up the cliff wall in conditions similar to those explorers might encounter on the red planet. Ronizi returned to the pressurized airlock of Ares Station ...