| 21. | Tito has undergone months of training at cosmonaut headquarters in Russia.
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| 22. | Culbertson's crewmates are cosmonauts Vladimir Dezhurov and Mikhail Turin.
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| 23. | Onufrienko did not break the record for cosmonauts of 438 days.
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| 24. | Whitson and two cosmonauts moved into the orbiting outpost in June.
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| 25. | At least two were sent to Russia's cosmonaut school.
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| 26. | Russian cosmonaut Nikolai Budarin has already been through it twice before.
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| 27. | He said the cosmonaut assured him he did not touch anything.
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| 28. | With minor modification, Zond was capable of carrying two cosmonauts.
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| 29. | The cosmonauts of Vostok 3 and 4 did not attempt rendezvous.
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| 30. | In 1962, he applied and was accepted for cosmonaut training.
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