Keldysh, Mstislav Vsevolodovich (1911–1978)
Chief theoretician of Soviet astronautics in the 1960s. Keldysh studied
physics and mathematics at Moscow University, obtaining his Ph.D. in 1938.
He worked for many years in a variety of positions at the Central Institute
of Aerohydrodynamics, Moscow University, and the Steklov Mathematical Institute.
In 1960-61 he served as vice president of the Soviet Academy of Sciences,
and thereafter as its president until 1975.
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