EMILIO SEGRE VISUAL ARCHIVES / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY EMILIO SEGRE VISUAL ARCHIVES / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY
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Martin Schwarzschild (1912-1997, left), German-American astronomer, and Lyman Spitzer (1914-1997), American theoretical physicist. Schwarzchild designed Stratoscope I, the first of two stratoscopes. These were balloon-borne optical and infrared telescopes that were used to study astronomical phenomena. He used Stratoscope I to study turbulence and granulation in the Sun's photosphere. Spitzer is most famous for envisioning what would eventually become the Hubble Space Telescope in his 1946 paper Astronomical advantages of an extraterrestrial observatory.
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