We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

Names are a strange thing in astronomy. Sometimes scientists come up with grandiose, simple name, like the Extremely Large ...

Quasar 0957+561, the first known gravitationally lensed quasar, lies near NGC 3079 in Ursa Major. Here's how to find and ...

The James Webb Space Telescope's Near-Infrared Camera (NIRCam) reveals a stunning view of star-forming region Sagittarius C ...

What happens when two rare ring galaxies collide? They form an infinity symbol—or the face of a cosmic owl, depending on how ...

James Webb Space Telescope has spotted a rare double-ring galaxy collision 11 billion light-years away, forming an owl-like ...

NASA astronomers have confirmed what may be the greatest discovery of the era. They found a significant reservoir of water that was hidden in the cosmos, and that surrounds a quasa ...