The Size Of Our Galaxy Compared To Others In The Universe
by Nina Sen | July 26, 2011 10:12am ET
In a universe of infinite possibilities, are we alone?
This video looks at our galaxy and compares its size to the size of the largest known galaxy. It also compares the Milky Way to some other galaxies, such as Andromeda, our closet neighbor . This clip was taken from the show "How The Universe Works." Prepare to be humbled.
Nina Sen is a frequent contributor to Live Science’s Life’s Little Mysteries series: an exploration and explanation of our world’s phenomena, both natural and man-made. She also writes astronomy photo stories for Live Science's sister site Space.com.