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Ripples in the microwave background radiation

Ripples in the microwave background radiation

R980/0055

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Credit

MULLARD RADIO ASTRONOMY LABORATORY / SCIENCE PHOTO LIBRARY MULLARD RADIO ASTRONOMY LABORATORY / SCIENCE PHOTO LIBRARY

Caption

Ripples in the cosmic microwave background. Coloured temperature map of part of the sky showing variations in the cosmic microwave background radiation (CMBR). The mean temperature of the CMBR is about 2.7 Kelvin (-270.4 Celsius.) The variations seen here are around 0.0001 degree (white is hotter, black is cooler). Each of these blobs covers an area of the sky similar to a full Moon. It is thought that these differences reveal the large-scale structure of the universe just 100,000 years after its creation in the Big Bang. The image was made using the Cosmic Anisotropy Telescope at Cambridge in 1996.

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Model release not required. Property release not required.

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