In the constellation Cygnus, a bright knot of stars seems to adorn one edge of a nearly perfect 20-light-year-wide circle, ...

Simulating a billion years using previous best-resolution simulations would take almost 36 years of real computing time.

Photographing the deep sky at night can be a complicated business involving specialist knowledge, expensive and bulky ...

Chinese researchers have identified black holes as the likely source of the high-energy component of the cosmic-ray “knee.” Milestone findings released on November 16 by the Large High Altitude Air Sh ...

A rare alignment between Earth and Saturn will make the gas giant’s rings appear so thin that they’ll be nearly invisible.

The sun’s current 11-year activity cycle has already peaked—but extreme outbursts from our star may still be in store ...

Astronomers are uncovering new ways to study the universe’s first stars, objects too distant and faint to observe directly, by examining the ancient 21-centimeter radio signal left behind by hydrogen ...

David Eicher is one of the most widely recognized astronomy enthusiasts in the world. He has been with Astronomy magazine for more than 40 years, beginning as an assistant editor and working through ...

Stargazing is best done flat on your back — and this inflatable lounger makes it incredibly easy. The Lamzac fills with air in seconds: just scoop air in swiftly through the open end of the lounger, ...

The planetarium turns 100 this year. What came before the giant domes, with imagery of galaxies, asteroids and meteors ...

Whether it be on sunny afternoons or starry nights, CMU’s Astronomy Club frequently takes members on educational and ...

Starlink satellites orbit Earth around every 90 minutes, so you might be able to spot them several times in one evening. That ...