Experts emphasize that the cosmic microwave background is shaped by everything it encounters on its journey, including ...

With a length of 428 megaparsecs, or around 1.39 billion light-years, the superstructure is the biggest ever spotted.

Einstein predicted the existence of gravitationally-warped rings of light in 1915. Now, a new one has been discovered just a ...

A French astrophotographer recently snapped shots of the moon, Venus, Mars, Jupiter, Saturn, Uranus and Neptune in a single ...