The ripples suggest that the lake was free of ice at one point.

Valles Marineris in imagery captured the Mars Reconnaissance Orbiter. Global topography: NASA/GSFC CTX global mosaic: NASA/MSSS/Caltech/ CTX topography: NASA/MSSS/USGS HiRISE: NASA/U.Arizona/USGS/Amaz ...

We often forget how wonderful it is that life exists, and what a special and unique phenomenon it is. As far as we know, ours ...

"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

Mars is often seen as a barren, rust-colored wasteland, but NASA’s Curiosity rover has just revealed a surprising burst of ...

The Philippine Mars' final flight ended in Lake Pleasant, Arizona, where the aircraft will be displayed. See photos of the ...

For a brief moment at the end of February, every planet will appear in the night sky simultaneously in a rare celestial ...

Nic Claxton had 11 points and five rebounds. Let's look at some of the best photos from the Thunder's 26-point win over the Nets: Player grades: Shai Gilgeous-Alexander's return boosts Thunder to ...

Let's look at some of the best photos from the Thunder's 29-point win over the Bucks: Player grades: Thunder cruise to 125-96 win over Giannis-less Bucks Photos: Best images from Thunder's 125-96 ...

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