Grave - on the floor of Gagarin
|Lat: 17.1°S, Long: 150.3°E, Diam: 40 km, Depth: km, Rükl: (farside)|
- Dmitry Aleksandrovich Grave (1863–1939) was a Soviet mathematician. He studied Jacobi's methods for the three body problem and map projections on equal area plane projections of the sphere, built on ideas of Euler, Lagrange and Chebyshev. Grave also studied algebra and number theory.
- Ivan Platonovich Grave (November 25, 1874 - March 3, 1960) was a Soviet engineer in the field of artillery. In 1916, Grave invented a missile powered by smokeless powder and launched from mobile launchers, and therefore he is also known as father of Katyusha. In 1918, he participated in creating the RKKA Artillery Academy. Ivan Grave was one of the founders of the Soviet school of internal ballistics.