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

Towards the end of the month, Mercury appears in the evening sky, and climbs up past Saturn. In the dusk glow, you may be ...

If the thought of any planet going retrograde causes you to steel yourself for a surge of frustration, crossed wires and challenges galore, you're far from alone. But one of the coolest things about ...

The rover's 26th sample, known as "Silver Mountain," has textures "unlike anything we've seen before," NASA says.

A coastal community in Southern California is shifting downslope -- and closer to the Pacific Ocean -- at a rapid rate, ...