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

Scientists have discovered evidence of a massive ancient ocean on Mars, providing new insights into the planet's history when it was abundant with water.

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

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 ...

NASA's Perseverance rover captured this pre-dawn view of Mars' moon Deimos hanging over a dimly-lit Martian vista. Unlike Earth's moon, which is roughly one-fourth the planet's size, Deimos is less ...