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/Cosmic_Background_Explorer" class="extiw" title="en:Cosmic Background Explorer">COBE</a> satellite during the first two years of the <i>Differential Microwave Radiometer</i> (DMR) observation. The plane of the Milky Way Galaxy is horizontal across the middle of each picture.
<ul><li>(top) uncorrected;</li>
<li>(middle) corrected for the dipole term due to our peculiar velocity;</li>
<li>(bottom) further corrected to remove the contribution of our galaxy.</li></ul><b>Note:</b> This map is based on data collected over the two first years of the four-year COBE mission. Therefore, it has been superseded by the <a href="//commons.wikimedia.org/wiki/File:COBE_DMR_Image.PNG" title="File:COBE DMR Image.PNG">four-year map</a>.
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>.
<ul><li><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></li>
<li><a rel="nofollow" class="external free" href="http://lambda.gsfc.nasa.gov/product/cobe/cobe_images/phys_today_cover_big.gif">http://lambda.gsfc.nasa.gov/product/cobe/cobe_images/phys_today_cover_big.gif</a></li></ul>