An unusual new rock collection discovered by NASA's Perseverance Mars rover suggests the Red Planet's ancient past was wet ...

Skylights, openings in the surface of Mars that descend down into caves, have been found on Mars, along with signatures for the presence of water ice.

New research reveals that ancient Mars once hosted vast river drainage systems comparable in scale to some of Earth’s major ...

For more than a century, astronomers debated the possibility of martian canali (channels) which Italian astronomer Giovanni Schiaparelli claimed to see on the Red Planet in 1877. Mistranslated into ...

A Mars rover has discovered strange, bleached rocks that suggest Mars may have once been wet and warm. Researchers at Purdue ...

When astronauts set foot on Mars, it will be one of humanity’s greatest milestones, marking the start of a new era of ...

Long before Mars turned into the frozen desert you see today, water shaped its surface in dramatic ways. Rivers cut through ...

The first global atlas of Martian watersheds reveals 16 huge ancient river systems that once shaped Mars and may hold clues ...

A mudstone sample from Jezero Crater shows textures and minerals that on Earth often form through microbial activity. Scientists caution that nonbiological processes could also explain the features, ...

A recent study spotted water carved cave openings in Mars Hebrus Valles region, hinting at sheltered places where signs of ancient microbes could survive.

Scientists have created the most detailed map of Mars’ ancient river systems, pinpointing 16 major basins that may have once ...