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 ...
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 ...