NASA 44 years old Boeing 747SP has left Europe after a serie of science observations from Germany (video)

NASA Boeing 747SP took off from Cologne Bonn airport back to Palmdale, CA. NASA’s Stratospheric Observatory for Infrared Astronomy, SOFIA, conducted a serie of science observations from Cologne, Germany in February and March, 2021. Many of the observations seek to answer fundamental questions in astronomy, including how stars can transform galaxies and what is the…