“The presence of liquid water [on Mars] is a broad topic that includes rains, rivers, lakes, as well as oceans,” says Ezat ...

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

MARS was not always the beaming red we’re so used to seeing in space. Scientists have revealed that it was actually a “blue planet” some 3billion years ago. The search for water ...

Spacecraft orbiting the Red Planet have helped researchers map out an ancient coastline that surrounded a large ocean billions of years ago ...