Scientists believe that our galaxy, the Milky Way, was created after many mergers, with smaller galaxies and clusters of stars. Some mergers were very recent, and scientists can still detect the clusters of stars orbiting the galaxy. But in time, ...
The Milky Way is so huge that the human imagination cannot possibly depict it. Our galaxy measures roughly 100,000 light-years in diameter, meaning that it’s so big that nobody would ever be able to go from one of its edges ...