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

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

Views from three space telescopes combine in this look at the Tarantula Nebula, spanning wavelengths from X-ray to infrared.

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 ...

Saturn reaches opposition this month, Neptune lingers near Saturn, Mars transits the Beehive, and Jupiter is occulted by the ...

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

The ringed planet reaches opposition and the Moon occults Jupiter in a rare event not to be missed in the sky this week.

The University of Wisconsin-Madison physicist and IceCube Neutrino Observatory principal investigator won the Royal Swedish Academy of Sciences' top honor for catching "ghost particles" from the ...

A crescent Moon passing in front of our solar system’s largest planet is a rare and brilliant sight. Here's how to see it for ...

The waning Moon passes through Cancer, sharing the constellation with both Mars and the Beehive Cluster (M44).

Jupiter’s largest moon, Ganymede, transits the gas giant’s disk this morning. Some part of the event, which lasts more than ...