This week on JPL/Nasa, there is a pretty interesting article on THE COSMIC INFRARED BACKGROUND CIB with photos taken by the Herschel Space Observatory- this intrgiues me very much, as it is the infrared version of CMB – and well worth a read.
Herschel Measures Dark Matter for Star-Forming Galaxies
A region of the sky called the “Lockman Hole,” located in the constellation of Ursa Major, is one of the areas surveyed in infrared light by the Herschel Space Observatory. All of the little dots in this picture are distant galaxies. Image credit: ESA/Herschel/SPIRE/HerMES