What is the Milky Way After All?

Universe Today publisher Fraser Cain pulls off an awesome Hitchcock entrance and explains what we know about the Milky Way galaxy. We now believe the Milky Way is made up of two spiral arms, but our ability to observe the galaxy is somewhat limited since we’re part of it looking out. Astronomers estimate that there are between 100 billion and 400 billion stars in the Milky Way (cue Carl Sagan). Our Sun is located about 27,000 light years from the center of the galaxy and it takes our Sun 240 million years to complete an orbit.