The interstellar comet 3I/ATLAS is making its closest approach to Earth on Dec. 19. Learn about the 'reconnaissance mission' ...

This interstellar vagabond is only the third large interstellar visitor that we have ever discovered — an asteroid or comet ...

A newborn star 15,000 light-years from Earth is fascinating astronomers with its dual blasts of superheated plasma jets. The ...

This NASA/ESA Hubble Space Telescope image features a glittering blue dwarf galaxy called Markarian 178 (Mrk 178). The galaxy ...

On Dec. 15, 1612, the Andromeda galaxy was seen through a telescope for the first time by a German astronomer named Simon Marius. [‘On This Day in Space’ Video Series on Space.com] The Andromeda ...

Hubble has turned its sharp gaze on a compact, intensely blue dwarf galaxy about 13 million light years away, revealing a ...

While the 21st century has been bumpy, it has also ushered in monumental scientific and technological breakthroughs that have ...

The best JWST images reveal galaxies, nebulae, and cosmic structures in stunning infrared clarity. These James Webb photos ...

A captivating new image captured by the Hubble Space Telescope reveals fascinating details about a rare galaxy,Markarian 178 ...

I/ATLAS comet is the 3rd-ever object discovered that originated from outside our solar system. It's not a threat, approaches ...

NASA's Nancy Grace Roman Space Telescope team has released detailed plans for a major survey that will reveal our home galaxy ...

JWST spots a mature early-universe spiral as CERN reveals how light nuclei form in extreme collisions, challenging core ...