Related by context. Frequent words. (Click for all words.) 52 Johannes Kepler 51 Lomonosov 51 interplanetary spacecraft 50 Nizhni Novgorod 50 Academician 49 Vsevolod 49 Yurii 49 Grigory 48 Pogosyan 48 Fyodorov 47 Leonov 46 Grigoriy 46 Novoship 46 Ulan Ude 45 Gorbunov 45 Osipov 45 Georgiy 45 astronautics 45 Klimov 45 Zhdanov 45 Baltic Fleet 44 Krylov 44 Leonid 44 Solovyov 44 Tycho Brahe 44 Severodvinsk 44 Maslov 44 Ilyin 43 Grigoryev 43 Konstantin 43 Khlebnikov 43 reusable spacecraft 43 Simonov 43 Homi Bhabha 43 Russky 43 Sobolev 43 Romanovsky 43 Sidorov 43 Rusnano 43 Gennady 43 Viacheslav 43 Vikram Sarabhai Space 43 Maximov 42 Nuclear Physics 42 Yevgeni 42 King Sejong 42 Vikram Sarabhai 42 Arkhangelsk 42 Komarov 42 geodesy 42 Kostroma 42 Mikhailov 42 Rodionov 42 Krasnov 42 Kiselev 42 Nikolayev 42 Yury 42 Tikhomirov 42 Oleg 42 Evgeny 42 Severomorsk 41 Nizhny Tagil 41 Konovalov 41 Ekaterinburg 41 Nadezhda 41 Rossiyskaya Gazeta 41 Yakunin 41 Nikonov 41 philology 41 Vorkuta 41 Aksyonov 41 Maxim Gorky 41 Mikhail 41 Nikolay 41 Ushakov 41 Korsakov 41 Nikolaev 41 Gennadi 41 Murmansk 41 Gennadiy 41 Leningrad 41 VVER 41 Platonov 41 Kherson 40 Evgeniy 40 National d' Etudes 40 Crimean 40 Alexander Pushkin 40 Kiselyov 40 Vassily 40 Dmitry 40 Valeriy 40 Shahid Beheshti University 40 NASAs 40 TIFR 40 Nomos 40 Vasiliev 40 propulsion 40 Yegor 40 Andrey 40 Pyotr