source 100-200 billion galaxies http://www.space.com... How many galaxies are in the universe? Space.com is 100 billion to 200 billion source 100 billion galaxies space.com 100 to 200 billion galaxies Space.com source source How Many Galaxies Are There? source How Many Galaxies Are There? 100-200 billion galaxies source source source source How Many Galaxies Are There? 100-200 billion galaxies How Many Galaxies Are There? source source How Many Galaxies Are There? source source source Space.com 170 billion galaxies source source How Many Galaxies Are There? Space.com « How Many Stars Are in the Milky Way? » http://www.space.com...e-universe.html source How Many Galaxies Are There? fonte 100-200 billion galaxies How Many Galaxies Are There? http://www.space.com... How Many Galaxies Are There? number of galaxies How Many Galaxies Are There? How Many Galaxies Are There? How Many Galaxies Are There? source 100-200 billion galaxies 100 to 200 billion galaxies in the observable universe source number of galaxies number of galaxies source source How Many Galaxies Are There? billions of galaxies How Many Galaxies Are There? How Many Galaxies Are There? source observable universe http://www.space.com... « How Many Stars Are in the Milky Way? » source source 200 billion galaxies How Many Galaxies Are There? « How Many Galaxies Are There? » How Many Galaxies Are There? 100-200 billion galaxies www.space.com Space.com source 100-200 billion galaxies report 100 billion to 200 billion galaxies « How Many Galaxies Are There? » 100-200 billion galaxies source http://www.space.com... 100-200 billion galaxies range of estimation How Many Galaxies Are There? number of galaxies number of galaxies Space.com How Many Galaxies Are There? source How many galaxies are in the universe? fonte www.space.com