Astronomer William Herschel first observed Uranus.
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German Astronomer Karl Ludwig Harding discovered the 3 Juno asteroid in the Asteroid Belt.
The USA's first space station, Skylab, was launched into Earth's orbit.
The USSR's Voskhod 1 spacecraft became the first spaceflight with multiple crew members.
Astronauts on Apollo 15 discovered a rock that could date back to the birth of the moon.
British astronomer William Lassell discovered two of Uranus' moons, Ariel and Umbriel.
