Jupiter will reach its highest point in the sky around dawn, when, from mid-northern latitudes, it will appear about 20 degrees from the point directly overhead, known as the zenith. During the ...

A NASA mission will send twin spacecraft to Mars to learn what happened to the Red Planet's ancient, thick atmosphere.

The new moon on Aug. 23 at 2:06 a.m. EDT (0606 UTC) is also a black moon, defined as the third new moon in a season that will see four new moons. Three days later, the moon will make a close pass to ...

Four billion years ago, Mars’ fate was sealed deep within its core. When the planet’s once-vigorous magnetic dynamo sputtered ...

NASA's ESCAPADE mission is launching two satellites, Blue and Gold, on November 9th to investigate Mars' lost atmosphere.

For decades, scientists have been curious about how much water Mars once had and what led to its gradual transformation into the dry planet we see today. A new study published online on September 2, ...