Most scientists agree that the Universe is expanding and that the expansion stems from an event that occurred some 14 billion years ago. That event is called the Big Bang.

Taking the Temperature of the Universe

Ear-catching modular programs bringing the space-age science of radio astronomy down to earth!  In celebration of its 50th Anniversary, the National Radio Astronomy Observatory brings you a series of brief insights into the fascinating world of deep space.  Tune into the Universe with Cosmic Radio!