This new Hubble image of Mars reveals details as small as 20 to 30 miles across. Bright, frosty polar caps, and clouds above a vivid, rust-colored landscape reveal Mars as a dynamic seasonal planet in ...

Astronauts train to scale a Mars volcano at an analogue site in France. Lava tubes that crisscross the Martian surface might provide sanctuaries for the first human explorers on the Red Planet. (Photo ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky.

Potentially hazardous asteroids pose a risk to Mars missions, but they can also yield insight into the history of the Red Planet and the early solar system, new research suggests. When you purchase ...

Why it's so special: Can you spot the hidden robot on Mars? In this photo, NASA's Curiosity rover, which has been exploring the surface of Mars since 2012, appears as a tiny, dark speck. The rover is ...