Cosmic Background Radiation

An electromagnetic radiation field at a black body temperature of 2.7 Kelvin that fills the entire universe uniformly to 0.00001 Kelvin. Also known as the Cosmic Microwave Background (CMB), it is thought to be the residual glow from the very hot early universe that followed the Big Bang.

Featured Images

The Planck space telescope and its view of the cosmic microwave background
Going Dark Thursday, October 24, 2013
The Milky Way galaxy and the afterglow of the Big Bang make up this all-sky imag
A Little of Everything Tuesday, July 6, 2010
Creation's Glow Wednesday, November 18, 2009
Cosmic Prize Sunday, December 10, 2006

Radio Programs

Setting a Date Zeroing in on the Big Bang Monday, May 13, 2013
COBE Details in the afterglow of the Big Bang Wednesday, November 18, 2009
ARCADE Fogging up the universe Friday, May 8, 2009
Planck Clearing up the static Wednesday, April 8, 2009


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