The Artemis program has been NASA's best chance to get "boots on the moon" again. But with the new US administration taking ...

Harvard scientists explain how Mars had warm spells billions of years ago, allowing rivers and lakes to exist.

An HTC headset designed to work in space is offsetting the physical and psychological challenges of humans living off-world.

The 3.7-billion-year-old formations in the planet's Gale Crater suggest the presence of long-gone bodies of liquid water, ...

Image of Shackleton Crater, a permanently shadowed region near the lunar south pole, shows slevation (left) and shaded relief ...

Experts told Newsweek about the difficulties of reaching Mars as the United States faces complex challenges in space policy.

Planetary defense is a global imperative, of course, but for the time being, NASA — and, by extension, the United States — is ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but get a telescope and you can spot Neptune and Uranus.

Four planets will be in the parade in January, while seven will align in February. Here's how to see the events.

Why does its southern hemisphere rise significantly above the smoother northern plains? A groundbreaking study using seismic ...

Mars' southern hemisphere absorbs a lot of the sun's energy during the Red Planet's spring, and that may be causing Mars' ...