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

Advances in synthetic biology, planetary engineering, and ultra-low-cost launch systems have dramatically altered how researchers view Mars terraforming. Once seen as an impossible sci-fi fantasy, ...

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 ...

It’s a virtual mission to Mars. Our first mission to Mars may still be a ways off, but people can take a virtual tour of the Red Planet thanks to a brand new video by the Mars Express Orbiter. People ...

Mars is a cold, dry, desert-like planet. But billions of years ago, scientific evidence suggests that it had a thick atmosphere, which kept it warm enough to support flowing water on its surface. So, ...

A rare triple conjunction of Venus, Mars and Mercury is happening on the opposite side of the solar system to where Earth is, ...

At half the size of Earth and one-tenth its mass, Mars is a featherweight as far as planets go. Yet new research reveals the extent to which Mars is quietly tugging on Earth's orbit and shaping the ...

The latest panorama from NASA’s Curiosity Mars rover turns Mount Sharp from a distant backdrop into an overwhelming, all-encompassing landscape, the kind of view that makes Gale Crater feel like a ...