Stratospheric Observatory for Infrared Astronomy (SOFIA) – A former Pan Am Boeing 747SP modified to carry a large infrared-sensitive telescope, in a joint venture of NASA and DLR.
Stratospheric Observatory for Infrared Astronomy (SOFIA) – Un antigo Boeing 747SP de Pan Am modificado para levar un gran telescopio sensible aos infravermellos, en colaboración coa NASA e DLR.