Tonight’s a two-for-one deal as the Double Cluster shines in Perseus’ northwestern corner, ready for wide-field or closeup ...

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

The 192nd asteroid discovered in the main belt is now at its best, located within a diamond shape of brighter field stars.

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

The solar system’s most distant planet is now at opposition and looking its best. Search it out after dark using optical aid.

Neptune reaches opposition this evening at 10 P.M. EDT, placing the planet at its best for viewing. However, with the nearly ...

Check out Astronomy’s latest product recommendations: The Edge of Space-Time by Chanda Prescod-Weinstein, the Seestar S30 Pro ...

The September Full Moon rules the skies this evening. Because it is the Full Moon closest to the equinox, it is called the ...

A space rock struck the Moon in 2024, carving a 728-foot crater. Two new studies show how the impact reshaped the lunar ...

Rising around 7:30 P.M. local daylight time, Saturn reaches an altitude above 40° in the southeast by local midnight. Visible ...

Scientists once thought luminiferous ether pervaded the cosmos. Michelson and Morley’s ingenious experiment to find it ...

Born Sept. 27, 1918, and educated at Bradfield College and Oxford University in the U.K., Martin Ryle would go on to be the ...