George Mary Searle discovered the asteroid 55 Pandora.
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William Herschel discovered the first binary star.
Scientists discovered the most distant supermassive black hole.
Space Shuttle Discovery completed its last-ever mission and made its final landing onto Kennedy's runway at 11:57 am EST.
The final gasps of the Crab Head nebula were observed as it went supernova.
The first-ever international crewed space mission was jointly launched by the US and the USSR.
