The Wild Duck Cluster is flying through the nighttime sky, a great object to check out during lengthening autumn evenings.

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 ...

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

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

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 ...

Also at opposition this week, asteroid 2 Pallas is passing near a field star with similar brightness to the main-belt world ...

Extragalactic globular clusters millions of light-years away are hiding in your astroimages. Here’s how to find them.

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