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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.

Radio Programs

Cosmic Puzzle Getting the numbers right September 13, 2022

Vacuum The not-so-empty vacuum of space September 7, 2021

PRIzM The challenges of radio astronomy December 3, 2020