Taking to Instagram, the National Aeronautics and Space Administration informed that the SOFIA Telescope, the world's largest airborne telescope which is housed and flown in a modified Boeing 747 aircraft, has flown 921 flights since 2010.
Further, the space agency informed that while the fourth image shows the Omega Nebula, the fifth picture shows the SOFIA mission flying into the sunset. .
SOFIA, for which NASA partnered with the German space agency (DLR), is a flying observatory.