MARK GARLICK / SCIENCE PHOTO LIBRARY MARK GARLICK / SCIENCE PHOTO LIBRARY
Big Bang. Conceptual artwork depicting the Big Bang, the huge explosion that cosmologists believe created the universe. The Big Bang occurred about 12-15 billion years ago, although the exact figure is uncertain. The Big Bang theory is based on the fact that the visible universe is still expanding outwards from a central point, and on the discovery of background microwave radiation thought to be an afterglow of the explosion.
Model release not required. Property release not required.