Temperature of the <a href="https://en.wikipedia.org/wiki/Cosmic_Microwave_Background" class="extiw" title="en:Cosmic Microwave Background">Cosmic Microwave Background</a> (CMB) radiation spectrum as determined with the <a href="https://en.wikipedia.org/wiki/COBE" class="extiw" title="en:COBE">COBE</a> satellite during the first two years of the Differential Microwave Radiometer (DMR) observation. The plane of the Milky Way Galaxy is horizontal across the middle of each picture.
The COBE datasets were developed by the <a rel="nofollow" class="external text" href="http://www.gsfc.nasa.gov/">NASA Goddard Space Flight Center</a> under the guidance of the <a rel="nofollow" class="external text" href="http://lambda.gsfc.nasa.gov/product/cobe/swg.cfm">COBE Science Working Group</a>.
Data collected between 1990 and 1992.
<a rel="nofollow" class="external free" href="http://lambda.gsfc.nasa.gov/product/cobe/dmr_image.cfm">http://lambda.gsfc.nasa.gov/product/cobe/dmr_image.cfm</a>