The Moon passes 5° north of Uranus at 6 A.M. EDT this morning. You’ll find our satellite hanging above the Pleiades (M45) in ...

A 1,100-mile-long ice cloud forms near the martian volcano Arsia Mons every morning. New simulations suggest it’s built by a ...

Even with a bright Moon in the sky, you can easily trace this “waterfall” of stars to its end in the spray of open cluster ...

Dione and its shadow cross Saturn’s disk this evening, while several more of the ringed planet’s moons stand nearby.

Mercury reaches a stationary point in Libra at 8 A.M. EDT. The tiny planet is only briefly visible after sunset, but if you’ve got a clear horizon, give it a try. Look west roughly 20 to 30 minutes ...

Monday, October 26 October’s Full Moon occurs at 12:12 A.M. EDT, shining brightly in both the morning and evening sky. The October Full Moon is also called the Hunter’s Moon, which follows the Full ...

This small martian satellite, the mission target for MMX, is destined to be shredded, changing the Red Planet forever.

Saturn’s two-toned moon Iapetus is now passing south of the ringed planet, making this satellite easier than usual to find.

The Orionid meteor shower peaks this morning — the perfect time to watch for shooting stars, as Earth turns into the ...

Learn the basics of the celestial coordinate system, like right ascension and declination, for accurate stargazing.