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234 years ago, in 1791:
Caroline Herschel discovers her fifth comet, Comet C/1791 X1 (Herschel).
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65 years ago, in 1960:
Pioneer P-31 (Atlas-Able 5B, Pioneer Z) is launched for a lunar orbit, but the mission fails due to the third stage breaking up.
61 years ago, in 1964:
The first Italian satellite, San Marco 1, is successfully launched.
60 years ago, in 1965:
Gemini VI-A is launched; completes rendezvous with Gemini VII at distances of 1 to 300 feet.
59 years ago, in 1966:
Audouin Dollfus discovers one of Saturn's moons, Janus.
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55 years ago, in 1970:
Venera 7 becomes the first craft to make a soft landing on Venus, returning 23 minutes of data.
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41 years ago, in 1984:
The Soviet Vega 1 probe is launched to release a balloon and lander on Venus, then continue on to Halley's Comet.
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15 years ago, in 2010:
Mars Odyssey breaks the record for longest lived spacecraft at Mars (3340 days).
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