Astronomers Returns to the Stratosphere
1 R. D. Gehrz Pathways toward Habitable Planets, Barcelona, Spain, 16 September, 2009 SOFIA: On the Pathway toward Habitable Worlds R. D. Gehrz a, D. Angerhausen.
SOFIA Observatory Overview and Specifications Last Updated – 2012-09-14.
SOFIA Observatory Overview and Specifications
