Is our universe the only universe

Is there more than one universe? In this visually rich, action-packed talk, Brian Greene shows how the unanswered questions of physics (starting with a big one: What caused the Big Bang?) have led to the theory that our own universe is just one of many in the "multiverse."

Outer Space

by Sander van den Berg

The footage in this video is derived from image sequences from NASA's Cassini and Voyager missions. I downloaden a large amount of raw images to create the video.
The song is The Cinematic Orchestra -That Home (Instrumental).
(Used under a Creative Commons Non-Commercial Attribution Share Alike license.)