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Top 10 Chandra Pictures: Four Years of X-ray Imaging
By Robert Roy Britt
Senior Science Writer
posted: 07:00 am ET
02 September 2003
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4. The early universe
Another black hole story that could make big news in the future was first reported
this year. By combing the data from the Chandra Deep Field North and Chandra
Deep Field South images, astronomers made a high-energy "core sample" of the
early universe.
In addition to hundreds of supermassive black holes, they found seven mysterious
sources that were not detected by the Hubble Space Telescope. These X-ray sources
are candidates for the most distant supermassive black holes ever observed.
[Full
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