Since humans first started observing Mars, the existence of nocturnal ice clouds on the Red Planet has been known, primarily through daytime observations and sophisticated climate models. Twilight ...

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

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 ...

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, ...

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

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, ...