The key to solving the mystery of the Viking results is the discovery of perchlorate on the Martian surface in 2008.

NASA's Curiosity rover has found evidence of water on ancient Mars with "rippled textures" and "landslide debris" in the ...

In a new study, researchers say that nonbiological sources they considered could not fully account for the abundance of ...

Known non-biological sources, from meteorites to surface chemistry, fall short of accounting for organic compounds detected ...

This isn’t the famous sample reported last September, but another with different signs of past life we’re struggling to ...

The Curiosity rover is travelling along the lower slopes of Mount Sharp (Mars), a large mountain in the center of Gale Crater on Mars.

After the Red Planet reemerged from conjunction — a period when NASA doesn't communicate with spacecraft because Mars is ...

Written by Alex Innanen, Atmospheric Scientist at York University, Toronto Earth planning date: Friday, Jan. 30, 2026 Mars has emerged from its holiday behind the Sun, and we here on Earth have been ...

Dave Hendricks of Idaho Falls spent his entire 35-year career working in the Idaho desert at Idaho National Laboratory. It’s ...

Scientists have found that ancient Martian lakes could have survived for decades despite freezing air temperatures. Using a newly adapted climate model, researchers showed that thin, seasonal ice ...

HOUSTON—A new research analysis of a sample of Mars gathered by NASA’s Curiosity rover and initially studied by onboard instrumentation has determined that non-biological sources once considered ...

NASA's Perseverance rover discovered rocks on Mars, providing new evidence the red planet was once a wet, habitable world that could support life.