Template:Space History/April
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| Milestones in space exploration history January - February - March - April - May - June - July - August - September - October - November - December |
Add an event in April
- 12 Apr 1961: Yuri Gagarin (Юрий Гагарин) becomes the first human in space.
- 19 Apr 1971: The first experimental space station was launched: Salyut 1
- 25 Apr 1990: The space shuttle Discovery launched the Earth-orbiting Hubble Space Telescope.

