Colonizing Mars and terraforming it to be a comfortable future home for humanity is quite the challenge. How would we go ...

Late-stage planetary collisions reshaped Earth and its neighboring planets, delivering water, altering their atmospheres, and ...

A planetary scientist walks through the sensors and systems that went into the recent detection of potential biosignatures.

The Griffith Observatory in California had a great view of the Mars-Moon occultation on Dec. 7, 2022. See the Red Planet slip ...

NASA scientists believe they’ve found the most compelling evidence yet of ancient microbial life on the Red Planet. Using the Perseverance rover, a special rock sample—nicknamed "Cheyava Falls"—was ...

After a year of scientific scrutiny, a rock sample collected by the Perseverance rover has been confirmed to contain a potential biosignature. The sample is the best candidate so far to provide ...

NASA’s Mars rover finds organic signals in mudstone that resemble microbial activity, sparking new debate over life on the ...

For decades, the search for alien intelligence has revolved around the question: if someone out there is listening, how could ...

A research team led by geophysicists at UC San Diego’s Scripps Institution of Oceanography provides an explanation for ...

Musk will likely stay committed to the Mars-settlement goal over the long haul, as it has long been a driving force for him ...

NASA’s Perseverance rover may have found ancient life on Mars—echoing decades of alien movies warning us not to underestimate ...

Earlier evidence pointing to ancient microbial life on the red planet hasn’t held up.