SOFIA is an airborne observatory, a Boeing 747SP modified to carry a 2.7m infrared telescope in the back of the fuselage. In late October 2015, I had the opportunity to fly on SOFIA during science missions 248 and 249. This episode captures these two flights. The episode is a mix between interviews with scientists and aircrew, recordings from the intercom system and some narration by me. The list of guests includes Jochen Eislöffel, Maria Kapala, Robert Peterson, Nick Veronico, Charlie Kaminski, Randy Grashuis, Steven Laney, Ace Beall, Chris Farinha, Ken Bower, Bill Vacca, Bill Wohler, Christopher Trinh, Oliver Zeile, and Christian Fischer.