GREAT Spectrometer Readied For Flight on SOFIA

Scientists recently completed a series of nighttime, ground-based testing of the German Receiver for Astronomy at Terahertz Frequencies, or GREAT, spectrometer in preparation for a series of astronomical science flights on the Stratospheric Observatory for Infrared Astronomy in April. With the SOFIA 747SP aircraft positioned on the ramp outside NASA?s Dryden Aircraft Operations Facility, the upper door covering the telescope was opened and GREAT?s interaction with the telescope was evaluated [...]

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