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.

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 ...