Astronomer William Herschel first observed Uranus.
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Scientists discovered the most distant supermassive black hole.
Kepler's Supernova was discovered.
American Astronomer William Henry Pickering discovered Phoebe, one of Saturn's moons.
The galaxy Centaurus A was discovered by Scottish astronomer James Dunlop.
The Apollo-Soyuz Test Project completed the world's first international space rendezvous.
