New evidence of ancient rivers suggests Mars may have been a "blue planet," thanks to an ocean spanning its entire northern ...

Bright white rocks spotted by NASA’s Perseverance rover are rewriting what we thought we knew about ancient Mars. These ...

New research suggests Mars was once a blue planet, as scientists identify river deltas and signs of a vast ancient ocean on ...

Using images from cameras on Mars orbiters, an international research team has discovered structures on Mars that are very similar to classic river deltas on Earth. These are traces of rivers that ...

Mars has an active, electrically charged surface where dust storms and spinning dust devils regularly move and reshape the landscape. Mars is often portrayed as a dry, empty world, but the planet is ...

MARS was not always the beaming red we’re so used to seeing in space. Scientists have revealed that it was actually a “blue ...

Mars today is a frozen, dusty desert. But if you look deep inside Valles Marineris, the largest canyon system on Mars and in ...

With its hills and distant mountains, the landscape seems somehow familiar yet at the same time eerily alien. The striking image was captured just recently by NASA’s Curiosity rover as it continues ...

"The structures that we were able to identify in the images are clearly the mouth of a river into an ocean." The post ...

"You could pull up Google Earth images of places like Utah, zoom out, and you’d see the similarities to Mars." When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

NASA’s long record of Martian exploration has trained the public to expect a steady stream of images and data from the Red ...