https://www.dlr.de/en/images/2016/3/the-kuiper-airborne-observatory-gazed-out-at-halley-s-comet-during-its-last-visit-to-the-inner-solar-system-in-1986-c-kuiper-airborne-observatory_23839
Several spacecraft were dispatched to take a good look at the visitor. The Kuiper Airborne Observatory gazed out at Halley's Comet from the stratosphere, set...
kuiper airborne observatoryhalleycomet
https://www.space.com/2496-sofia-airborne-observatory-passes-technical-review.html
WASHINGTON -- NASA announced June 15 that a senior review board found no "insurmountable technical or programmatic challenges" to the completion of the SOFIA...
airborne observatorytechnical reviewsofiapassesspace