This unique pair of craters was created by just one impactor that skipped along the lunar surface, leaving a cometlike tail ...

Two jovian moons cross each other’s paths from our point of view, appearing to merge in the telescope eyepiece.

Discover this year's most exciting new astronomy products selected by Astronomy's contributing editor and gear guru, Phil ...

The planet Mercury stands 25° east of the Sun. View the solar system’s smallest planet, along with the crescent Moon, in the ...

Integrity served as a deep-space testbed for technology that could aid cancer patients, serve remote clinics, and supercharge ...

Astronomers can use lensing to learn about everything from the makeup of the universe to the nature of extrasolar planets.

Since ESA’s Herschel observatory went dark in 2013, no space telescope has been observing in the far-infrared. NASA's new ...

The Red Planet plows through an open cluster, Mercury reaches greatest eastern elongation, and New Moon brings darkness in ...

Saturn’s brightest moon, Titan, has closed the gap between itself and its parent planet to sit less than 1’ northeast of the ringed world tonight. With Saturn already above the horizon as the sky is ...

This dense globular cluster is the only Messier object in Capricornus, perfectly positioned for evening observing in the Sea ...

The Red Planet passes through M44, also known as the Beehive Cluster, a bright group of young stars in Cancer the Crab.

With no Moon in the sky, it’s the perfect time to look for the so-called false dawn before sunrise: the zodiacal light.