Contact: Madeleine Russell
UK Space Agency
Caption: This is a composite X-ray/submillimeter image of the Chandra Deep Field North. The Chandra Deep Field North lies in the constellation of Ursa Major, Green and red correspond to the Herschel SPIRE 250 and 350 micron images showing the sky crowded with submillimeter-bright, dusty galaxies. Blue shows the X-rays recorded by Chandra, most of which come from active galactic nuclei.
Credit: ESA/Herschel/HerMES; NASA/CSX
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