Just 48 short years ago, movie director George Lucas used the phrase “A long time ago in a galaxy far, far away” as the opening to the first “Star Wars” movie, later labeled “Episode IV: A New Hope.” ...

The "afterglow" of the universe is an important piece of evidence for the Big Bang. This background radiation also provides ...

The word itself comes from galaktikós kyklos, or “milky circle,” the ancient Greek term for the Milky Way, our home galaxy.