Image: Exposed bedrock on the Red Planet's hale crater

This image from MRO, NASA's Mars Reconnaissance Orbiter, shows the Red Planet's Hale Crater, a large impact crater (more than 62 miles, or 100 kilometers, across) with a suite of interesting features such as active gullies, ...

A pale blue dot, as seen by a CubeSat

NASA's Voyager 1 took a classic portrait of Earth from several billion miles away in 1990. Now a class of tiny, boxy spacecraft, known as CubeSats, have just taken their own version of a "pale blue dot" image, capturing Earth ...

NASA's first deep-space CubeSats say: 'Polo!'

NASA has received radio signals indicating that the first-ever CubeSats headed to deep space are alive and well. The first signal was received at 12:15 p.m. PST (3:15 p.m. EST) yesterday; the second at 1:58 p.m. PST (4:58 ...

'Tour of the Moon' 4K redux

In the fall of 2011, the Lunar Reconnaissance Orbiter (LRO) mission released its original Tour of the Moon, a five-minute animation that takes the viewer on a virtual tour of our nearest neighbor in space. Six years later, ...

Image: Gullies of Matara Crater

Gullies on Martian sand dunes, like these in Matara Crater, have been very active, with many flows in the last 10 years. The flows typically occur when seasonal frost is present.

On second thought, the Moon's water may be widespread and immobile

A new analysis of data from two lunar missions finds evidence that the Moon's water is widely distributed across the surface and is not confined to a particular region or type of terrain. The water appears to be present day ...

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