Stratoscope

The Stratoscopes were two balloon-borne astronomical telescopes which flew from the 1950s to the 1970s and observed in the optical and infrared regions of the spectrum. Both were controlled remotely from the ground. Stratoscope I possessed a 12 inch (30.48 cm) mirror and was first flown in 1957. It was conceived by Martin Schwarzschild and built b...
Found on http://en.wikipedia.org/wiki/Stratoscope

stratoscope

stratoscope A telescope that operates by remote control and is lifted by balloon to high altitudes so as to reduce the effect of atmospheric turbulence on the observations.
Found on http://www.wordinfo.info/words/index/info/view_unit/2047/2
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