At 250 million light-years in diameter, how massive is the Boötes void?
The Boötes void or giant void is a very large, nearly spherical region containing very few galaxies. It is located in the vicinity of the constellation Boötes.400 galaxies, including our own, are being drawn toward a mysterious
Astronomers have found that 400 galaxies, including our own, are being pulled towardHow scary is the Laniakea Supercluster?
The Laniakea Supercluster, also known as theWhat controls the movement of galaxies?
In 1986, astronomers discovered
