Saturn’s small moon Tethys makes another transit across the disk along with its shadow; several other moons are observable as ...

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

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

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

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.

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

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 ...

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

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 ...

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