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 ...

In the 35 years since the Hubble Space Telescope flew to space, it has taken pictures of comets, merging galaxies, planets, supernova remnants, and more. The first-of-its-kind telescope — a ...

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

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

NASA’s Lucy spacecraft visited the asteroid 52246 Donaldjohanson on Sunday, April 20, coming within 600 miles (920 kilometers) of the object located in the inner region of the asteroid belt ...

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

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

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

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

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