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  Missing black holes give clues as to how galaxies evolve

Photo of article European astronomers, working with NASA’s Spitzer and Chandra space telescopes, have found hundreds of massive, growing black holes hiding deep inside dusty galaxies billions of light years away. They represent a large fraction of a missing population of black holes that have been sought after by scientists for three decades. Their discovery leads astronomers to conclude that hundreds of millions of additional growing black holes exist in our young universe, more than doubling the total amount known at that distance. These new observations were carried out as part of the Great Observatories Origins Deep Survey (GOODS), the most sensitive survey to date of the distant universe at multiple wave lengths.

NB: This article is more than 4 years old so the information may not be up to date.

Published: 15 November 2007

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