On January 25, 2011 Russian Post issued a postage stamp devoted to Mstislav KELDYSH, Soviet scientist in the field of mathematics and mechanics.
Keldysh's main efforts were devoted to jet propulsion and rockets including supersonic gas dynamics, heat and mass exchange, heat shielding etc. 1959 saw successful testing of the Soviet first cruise missile, which displayed better performance than the Navajo missile being designed in USA at the time.
In 1954 Keldysh, Sergey Korolyov and Mikhail Tikhonravov submitted a letter to the Soviet Government proposing
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