Scientists confirm the existence of liquid water on Mars, altering our understanding of the Red Planet. Evidence of wave ...

Less than 24 hours after the International Astronomical Union’s Minor Planet Center announced the discovery of a new asteroid ...

Exciting advances in space exploration are underway as NASA tests revolutionary shape memory alloy (SMA) spring tires ...

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

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

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 ...