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The Stratospheric Observatory for Infrared Astronomy (SOFIA), a joint US/German project, is a 2.5-m infrared airborne telescope carried by a Boeing 747-SP that flies in the stratosphere at altitudes as high as 45,000ft (13.72km). This facility is capable of observing from 0.3μm to 1.6mm with an average transmission greater than 80% averaged over all wavelengths. SOFIA will be staged out of the NASA...
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