The Boötes Void

The Boötes Void is a massive spherical region in space approximately 330 million light-years in diameter (accounting for 0.27% of the diameter of the entire Universe) composed of empty space. Also called “The Great Nothing,” this mysterious region resides in the...

Hercules–Corona Borealis Great Wall

The Hercules-Corona Borealis Great Wall is a massive galactic superstructure. It is the largest known celestial object thus far discovered, giving its epic name justice. It was discovered in early November 2013 by a team of American and Hungarian astronomers,...