April 21 - 28 is International Dark Sky Week, a global celebration of the night sky during which like-minded organizations ...

From spellbinding images to groundbreaking scientific discoveries, we look back on some of Hubble's most exciting milestones.

A distant flicker of light from a star can reveal more than you might expect. In fact, a brief, subtle brightening in the sky ...

The telescope may operate for 20 years, and it's off to a good start. Let's take a look at the best of Webb so far. Here, in no particular order, are 35 of the best Webb images we've seen to date. 1.

The predawn hours of April 28 will see a planetary triangle form in the night sky, as Venus makes a close approach to Saturn following a conjunction, while Neptune, invisible to the naked eye, will ...

This quiet star formation lends mystery to the galaxy. Although it shows signs of spiral and elliptical galaxies, it does not have the robust star formation that would be found in a galaxy as ...

the system will most likely evolve into a compact elliptical galaxy. More information: Daya Nidhi Chhatkuli et al, SDSS J134313.15+364457.5: Forming Compact Elliptical through the Merger ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers have detected a new ...

Astrophotographer Ron Brecher has captured a stunning deep sky image of the spiral galaxy M106, located 23.5 million light ...

Elliptical galaxy NGC 3561B (upper left) and spiral galaxy NGC 3561A (lower right) form a shimmering guitar shape in the ongoing merger known collectively as Arp 105. CREDITS: NASA, ESA and M.

Being sites of intense star formation, the rings have been interpreted as evidence that Andromeda collided with its smaller neighboring elliptical galaxy M32 more than 200 million years ago.