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

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

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 ...

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.

A great object for small telescopes, M63 can be found 5.3° northeast of magnitude 2.9 Cor Caroli, Canes Venatici’s alpha star. It’s part of the same galaxy group as M51 (the Whirlpool Galaxy), and ...

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 ...

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 ...

The autumnal equinox occurs at 8:05 P.M. EDT. This moment marks the changing of the astronomical seasons; for those in the Northern Hemisphere, this is when summer ends and autumn begins. However, ...