The Japan Aerospace Exploration Agency (JAXA) is targeting Oct. 19 for the launch of a first-of-its-kind sample return mission to the martian moon Phobos.

Meteors streak past the stars as the First Quarter Moon shines and Iapetus reaches superior conjunction in the sky this week.

Saturn’s moon Tethys transits the disk; you may catch it via planetary imaging. Bright Titan is near the planet, visible to ...

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 ...

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

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

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

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

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