Fred T.
10/19/2019
SOFIA or better yet the Stratospheric Observatory For Infrared Astronomy is a converted 747-SP that holds a telescope. The plane flies up to 40000 feet well above any atmospheric moisture for...
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SOFIA or better yet the Stratospheric Observatory For Infrared Astronomy is a converted 747-SP that holds a telescope. The plane flies up to 40000 feet well above any atmospheric moisture for...