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.

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 ...

With the recent first light milestone for the Vera Rubin Observatory, it's only a matter of time before one of astronomy's ...

Two international teams zoned in on a potential answer to a decades-long mystery surrounding ephemeral cosmic X-rays.

"Theories involving substantial formation of stars prior to or together with the black hole formation and growth are very ...

The James Webb Space Telescope has discovered a rare 'Cosmic Owl' structure, formed by two colliding ring galaxies, approximately 11 billion light-years away.

Researchers analysing Webb Telescope data recently found a rare galactic duo. Together, the galaxies form an owl-like structure about 11 billion light-years away.

According to a provocative new study, that might just be our cosmic address. This idea is meant to solve one of the biggest ...

At cosmological scales, Albert Einstein’s theory of general relativity has given scientists an immensely accurate blueprint ...

Black holes are already among the most mysterious objects in the galaxy, and yet, one specific type has almost completely ...

In a major breakthrough for astronomy, scientists have captured an incredibly detailed image of a powerful jet shooting out from a distant black hole. This was made possible by connecting some of the ...

Scientists believe the Milky Way contains up to 400 billion stars and at least as many planets. The largest galaxy known, IC 1101, has more than 100 trillion stars. Step outside on a clear night and ...