A billion years ago, an utterly massive crash of two clusters of galaxies resulted in a pair of incredibly epic shock waves. The formations are so massive that they could easily encompass the Milky Way galaxy’s approximated 100,000 light-year diameter, ...
A galaxy is unfathomably huge, as it usually contains hundreds of billions of stars. But since the Universe is much bigger, so big that nobody knows for sure where its boundaries are, there’s no telling if it could be a ...