A rock shaped like an arrowhead on Mars, displaying intriguing features, could reveal clues about ancient microbial activity.

A new study claims that a mineral found in Mars' dust called ferrihydrite, which forms in the presence of cool water, is likely what gives the planet its reddish hue.

There are a couple potential explanations for distinctive markings found on a Martian rock, but new evidence suggests they ...

An arrowhead-shaped rock on Mars sporting features that may hint at ancient microbial activity on the Red Planet has left ...

The idea of an ancient Martian ocean has fascinated scientists for decades. Now, groundbreaking research based on radar scans ...

Fluid-rock interactions on ancient Mars may have produced abundant magnetic minerals that preserved unusually intense records ...

"Shorelines are great locations to look for evidence of past life." Today, Mars is a chilly desert of rock and dust — but 4 billion years ago, the planet had rivers, lakes and even oceans with sandy ...

NASA’s Perseverance rover found large crystals of quartz with a high purity on Mars, which probably had to have formed in the ...

Although the announcement might have space tourism proponents salivating, the more immediate significance lies in helping focus the search for signs of ancient Martian life. Plans to settle on ...

"The Martian surface has changed dramatically over ... and study co-author Benjamin Cardenas said. "We also considered ancient rivers, which exist in some nearby locations on Mars, but we rejected ...

Zhurong, the Chinese Martian rover, is equipped with special ... so this is painting a picture of ancient habitable environments, capable of harboring conditions friendly toward microbial life ...