NASA and the German space agency DLR have announced the closure of the SOFIA observatory
The flights of the Stratospheric Observatory for Infrared Astronomy (SOFIA) with a 2.7-meter infrared telescope based on the Boeing 747 will end on September 30. The profitability of SOFIA has raised questions for several years: NASA spends $85 million a year on this observatory. This is more than any other astrophysical mission except the Hubble […]