The concept of two black holes orbiting one another has been theorized for many years, but recent satellite photography may ...

Views of a massive galaxy cluster Abell 2256 have been captured by NASA’s Chandra X-ray Observatory, ESA’s XMM-Newton and ...

Beginning Monday afternoon, comet Lemmon will pass about 56 million miles from Earth, while comet Swan will soar even closer, ...

Starfront Observatories allows amateur astronomers to rent a spot for their telescopes and photograph the cosmos over a ...

The NASA/ESA/CSA James Webb Space Telescope has been exploring the cosmos for 3 years. See some of the amazing highlights.

When space telescopes blazed with high-energy radiation for hours earlier this year, astronomers suspected that they were ...

Astronomers had long suspected that certain quasars—those brilliant, otherworldly light sources fueled by supermassive black ...

Learn when and where to see Comet Lemmon and Comet SWAN this October as they light up the night sky in a rare double comet ...

Whether you're an aspiring star gazer or an experienced observer, save on a new telescope during Amazon Prime Big Deal Days ...

Stars and satellites are meeting more frequently in the night sky, raising vital questions about the future of astronomy.

A pair of once-in-a-lifetime comets will rocket through our skies this October, and it's a rare treat because they won't be ...

Scientists using a global array of radio telescopes have detected the universe’s lowest-mass dark object by observing how it ...