mars

Here's how your brain might adjust to see color on another world.

Is something fishy happening on the Red Planet, or is it all in our minds again?

One researcher hypothesizes that experiments carried out by NASA's Viking landers in 1976 could have inadvertently killed microbes living in Martian rocks. Other experts are skeptical.

The sun has launched a surprise CME directly at Mars, which could spark auroras and damage the Red Planet's atmosphere when it hits on Sept. 1.

Researchers estimated that as few as 22 people would be needed to sustain a colony on Mars. But there are lots of caveats, and the new study largely misses the point of colonizing the Red Planet in the first place, experts say.

A patchwork of polygon-shaped cracks in ancient Martian mud are evidence of past wet-dry cycles, which could have helped extraterrestrial life emerge on the Red Planet.

Data from NASA's InSight mission shows that Mars's rotation is speeding up and its days are growing slightly shorter. Scientists have a few ideas why.

Instruments in different parts of the solar system all captured radiation from the same coronal mass ejection for the first time ever.

NASA's Perseverance rover is perfectly positioned to snap pictures of massive sunspots that could spit out powerful solar storms before they become visible from Earth.

NASA's Perseverance rover has found an intriguing menagerie of organic molecules in a Martian crater, but their source remains unclear.