Planck Starts Collecting Light Left Over From Big Bang

Artists concept of the Planck spacecraft. Credit: JPL

As of August 13, 2009, the Planck mission is officially in business. It is now seeing light billions of years old, left over from the Big Bang. From its location in the L2 point, the spacecraft started collecting science data as part of the "First Light Survey" which is intended to check out all the systems. If all goes as planned, these observations will be the first of 15 or more months of data gathered from two full-sky scans.
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