Visitors look view celestial objects during a night sky viewing party at Mammoth Cave National Park. NPS Photo. MAMMOTH CAVE, ...

There are already tens of thousands of pieces of large debris in orbit, some of which pose a threat to functional satellites.

Tim Yaworski, known to many as “Living Sky Guy,” is bringing his 45-year-long passion for the night sky to Beaver Creek ...

Two new stars, or nova eruptions, have been resolved in unprecedented detail by six optical telescopes operating in unison as ...

The Geminids meteor shower is known for its dazzling display of bright and fast meteors with dozens appearing each hour.

Stunning new photos from Egypt show interstellar comet 3I/ATLAS glowing an unusually bright emerald green, prompting fresh ...

Most smaller galaxies may not have supermassive black holes in their centers, according to a new study using NASA's Chandra X ...

The Extremely Large Telescope (ELT), now under construction in the Chilean Andes, is set to revolutionize the field of ...

The two galaxies shown here, NGC 6278 and PGC 039620, are representative of the more than 1,600 galaxies analyzed in a new study. Both galaxies are ...

A stronomers using the JWST have traced the source of a long-duration gamma-ray burst back to a supernova that exploded ...

Lurking further from its stars than Neptune is from the Sun, this is no inner planet, but it’s on a scale we recognize, ...

Compelling evidence that the structure of matter surrounding supermassive black holes has changed over cosmic time has been ...