From a distance, it looks like a serene blue twin of our own world, a dot that could almost pass for Earth in a telescope ...
New research suggests Mars was once a blue planet, as scientists identify river deltas and signs of a vast ancient ocean on ...
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 red planet was half blue, according to space scientists. A research team using images from cameras on Mars-orbiting spacecraft say it was a "blue planet" around three billion years ago – with an ...