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Cosmic Background Explorer

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Cosmic Background Explorer

US astronomical satellite launched in 1989 to study cosmic background radiation. It confirmed the Big Bang theory of the universe's creation when its Far Infrared Absolute Spectrophotometer (FIRAS) measured the afterglow of the Big Bang. In 1992 it confirmed that this radiation has a black body spectrum of temperature 2.73 K (−270.4°C/−454.7°F) and revealed ripples in the background radiation believed to mark the first stage in galaxy formation. Its final instrument was turned off on 23 December 1993.



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The book also includes an explanation of string theory, updates on the Hubble Space Telescope and the Cosmic Background Explorer satellite, and a helpful glossary.
A Briefer History of Time by Science News
Only the Cosmic Background Explorer satellite six years ago managed to look deeper in space, the project astronomers said.
HUBBLE DISCOVERS BILLIONS OF GALAXIES by Daily News (Los Angeles, CA)
First there was the Cosmic Background Explorer (COBE) satellite and its discovery of the long-sought variations in the cosmic background radiation.
The Origin of the Universe by Haegel, Nancy M. / Commonweal
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