Their new study shows that Earth’s massive drop in temperature after the dinosaurs went extinct could have been caused by a large drop in calcium levels in the ocean. The study showed that the ...

NASA's IR space scope explores the Milky Way’s most prolific star-forming region, cracking open new secrets of how stars form.

Although the Moon is growing brighter, there’s still plenty to see in the evening sky. Astronomy contributor Phil Harrington calls the shape formed by the bright stars Betelgeuse, Sirius, and Procyon ...

There’s plenty to view in the early-morning sky, especially with no Moon visible before dawn. Although anchored by the bright star Arcturus, the constellation Boötes is relatively devoid of bright ...

Saturn’s four brightest moons are lined up for ideal viewing this evening. You can catch the ringed planet for a few hours after sunset, as it slowly sinks toward the western horizon. Around 7 P.M.

Ganymede transits the face of Jupiter this morning, trailed by its large shadow. The event starts just before 4 A.M. EST, as Jupiter is slowly setting in the west for much of the U.S. (The planet is ...

The September 2025 issue featured “A guide to beginner’s guides,” a reminiscence and description of some the books for astronomy beginners that Contributing Editor Raymond Shubinski recommends or ...

The gibbous Moon passes 5° north of Uranus at 2 P.M. EST. Tonight, you’ll find our satellite just northeast of the Pleiades star cluster in Taurus, with Uranus to their southwest. Many areas in Europe ...

On Jan. 20, 1930, Edwin “Buzz” Aldrin was born in New Jersey. After graduating from West Point and serving as a fighter pilot in the Korean War, Aldrin completed his Ph.D. at MIT in 1963. When he was ...

Take advantage of the dark window before the crescent Moon rises to explore the Rosette Nebula, also cataloged as NGC 2237. This gorgeous sight is made up of a central open star cluster surrounded by ...

In this episode, Astronomy magazine Editor Emeritus Dave Eicher invites you to head out on the evening of January 27 to see the Moon pass the Pleiades star cluster, which lies in the constellation ...

Comet 24P/Schaumasse is roughly 10th magnitude, visible using optics or in astrophotos of the sky. Rising shortly before local midnight, Schaumasse is best seen in the early-morning hours — and with ...