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SOFIA
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SOFIA

January 4, 2013
The German Receiver for Astronomy at Terahertz Frequencies spectrometer, or GREAT, is mounted on the Stratospheric Observatory for Infrared Astronomy’s telescope in its normal position. When observing, the instrument will move with the telescope plus or minus 20 degrees from its normal 40-degree angle. January 21, 2011 NASA Photo / Tom Tschida


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