The planets offer exciting views in April for both night owls and early risers. Plus, the Lyrid meteor shower peaks in ...

Plus: A solar eclipse and an occultation of the Pleiades as our satellite skims through several constellations in the sky ...

Venus remains rather low at dawn but slowly gains altitude as the month rolls along. Look for it in the east 45-60 minutes ...

The occultation of Spica will be observable in ... time on April 13 and will be easily visible throughout the evening. Mars is much higher in the sky; by about 8 p.m. it is still some 71 degrees ...

This month, there will be many conjunctions (remote objects visually appear close to one another) and planetary and star occultations (one object briefly ... the moon will be in conjunction with Mars, ...

A space probe flying past Mars captured images of the red planet's small, mysterious moon. While on a flyby of Mars, Hera was able to use three of its imaging instruments to capture images of ...

Seismic readings of the interior of Mars strongly suggest large quantities of water buried 6 to 12 miles underground. Persuasive new evidence supporting the possibility of liquid water deep ...

Clouds of water ice can be seen drifting over ancient volcanoes on Mars. But billions of years ago, the surface was more temperate. Rock samples could tell us whether it supported ancient life.