SOFIA Cycle 6 Call for Proposals ReleasedNASA’s Stratospheric Observatory for Infrared Astronomy, SOFIA, issued its Cycle 6 Call for Proposals, on May 1, 2017, soliciting observing proposals from the U.S. and international astronomical communities.Read More Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/sofia-cycle-6-call-proposals-released/Copy URL to clipboard> DownloadShareSize1041x885px