This test Vostok spacecraft was the fourth in a series of spacecraft designed as precursors to manned space flight. The spacecraft carried a dummy astronaut and the dog Chernushka. The flight lasted for a single orbit, and a successful recovery was made.
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Sputnik 5 was launched on August 19, 1960 with the dogs Belka and Strelka, 40 mice, 2 rats and a variety of plants on board.
Sputnik 40 (Object 24958/97058C) was a â…“-scale model amateur radio AMSAT satellite launched from the Mir space station on 3 November 1997 to commemorate the 40th anniversary of Sputnik 1.
Its appearance resembled Sputnik I. Its batteries expired on 29 December 1997 and the VHF transmitter fell silent.
The Sputnik 1 rocket booster also reached Earth orbit and was visible from the ground at night as a first magnitude object, while the small but highly polished sphere barely visible at sixth magnitude more difficult to follow optically.
Sputnik 2 was the second spacecraft launched into Earth orbit and was the first biological to contain a passenger.
Sputnik 20 was intended to be a Venus landing mission.