Researchers used satellite data to calculate and simulate the sea level in a canyon, getting a glimpse of a huge ocean.

Mars may have been a "blue planet" with an ocean the size of today's Arctic Ocean, a new study suggests. New evidence of ...

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

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

The first unmistakable signal from another intelligence may not be a cheerful greeting. A growing group of researchers is ...