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 ...

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

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

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

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

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

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

The ringed world’s brightest moon is passing north of its parent planet overnight tonight, making it particularly easy to ...

From the Crab Nebula to the Orion Nebula, these 10 winter deep-sky objects are easy to find and perfect targets for small ...