William Optics’ newest machined aluminum refractor captures fine detail for imagers and its size makes it easily portable ...

Major survey results now hint that dark energy has evolved across cosmic history, raising questions about the standard model ...

The Dragonfly quadcopter will soar through Titan’s hazy skies and roam its dune seas in search of evidence that the distant ...

In its quest to chart the evolution of the universe, ESA’s space telescope has already amassed a massive catalog of galaxies ...

The Whirlpool Galaxy (M51) offers a chance to see a galaxy collision occurring in the sky. Here's how to view this ...

Although our universe is mostly normal matter, antimatter isn’t so hard to create — supernovae, black holes, and even bananas ...

View a brilliant morning star, enjoy dark skies during New Moon, and take in plenty of deep-sky targets in the sky this week.

Enjoy dark skies for evening observing, then catch a meteor shower and a planetary conjunction in the morning sky this week.

Asteroid Donaldjohanson was the second destination on the NASA mission’s itinerary — and its size and shape were not what ...

Fresh data from the James Webb Space Telescope provide more evidence for what some consider a biosignature — but debate is sure to follow.

The shining Southern Pinwheel Galaxy (M83) in Hydra checks almost every box an amateur astronomer could desire.