A V-2 rocket captured the first photograph of Earth from outer space.
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An orbital-class rocket was successfully reused for the first time.
Robert Goddard was granted a patent for the rocket-powered aircraft.
Using Johannes Kepler's predictions, French scientist Pierre Gassendi became the first person to witness Mercury's transit between the Earth and the Sun.
Two Earth-like planets in one solar system were discovered.
Elon Musk's SpaceX launched the world's most powerful rocket, 'Falcon Heavy.'
