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gptkb:United_States_(until_1964)
|
gptkb:Mercury_program
|
|
gptkb:Soviet_Union_(1970s)
|
Soyuz missions
|
|
gptkb:Soviet_Union_(after_1939)
|
Launched Sputnik 1
|
|
gptkb:Soviet_Union_(after_1939)
|
gptkb:First_spacewalk_(Alexei_Leonov)
|
|
gptkb:Soviet_Union_(1970s)
|
gptkb:Salyut_space_stations
|
|
gptkb:Soviet_Union_(after_1939)
|
First woman in space (Valentina Tereshkova)
|
|
gptkb:United_States_(until_1964)
|
Gemini program (began 1961)
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|
gptkb:Soviet_Union_(1970s)
|
gptkb:Luna_program
|
|
gptkb:Soviet_Union_(after_1939)
|
First human in space (Yuri Gagarin)
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