ANSWER: Very big!! The Milky Way Galaxy is one of billions of galaxies in the known universe. The Milky Way is a spiral galaxy in what is called the Local Group within the Virgo Supercluster.
The vast galaxy has nine regions, with billions of inhabited planets and a host of aliens that have yet to be explored in ...
Galaxy NGC 1549, born just 700 million years after the Big Bang, provides a rare window into a critical period of cosmic ...