Mars

"We think the water came from the melting of nearby sub-surface ice called permafrost, and that the permafrost melting was caused by magmatic activity that still occurs periodically on Mars to the present day."

Data from China's Zhurong rover has revealed what appears to be an ancient shoreline streaking through Mars' northern hemisphere.

Huge shells of frozen carbon dioxide at Mars' south polar cap resulted in subsurface meltwater, which fed a huge system of rivers, lakes and even a sea, a new study suggests.

Mars' global magnetic field may have hung around for 200 million years longer than scientists had thought, possibly giving life a longer window to take hold on the Red Planet.

NASA's Perseverance Mars rover was treated to a 'googly eye' solar eclipse on Sept. 30 as the planet's moon Phobos passed in front of the sun.

China has moved up its timeline for bringing Mars samples to Earth, aiming to do so as early as 2028 — long before the U.S. is slated to achieve this same ambitious goal.

What is the amount of greenhouse warming required to heat up the cold climes of Mars enough so that trees can grow on the Red Planet?

'Photosynthetic habitable zones' could exist beneath radiation-filtering ice on Mars, offering scientists another region in which to hunt for alien life.

NASA's Curiosity rover has new insights into how Mars might have changed from a potentially habitable, water-rich planet to an absolutely uninhabitable desert.