10 September
1857: On 10 September 1857, James Edward Keeler was born.Keeler was an American astronomer. He verified Maxwell's prediction that Saturn's ring system is not solid, but is a vast swarm ...
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1985: On 11 September 1985, the International Cometary Explorer (ICE) made the first encounter with a comet tail - a fly-by of Comet P/Giacobini-Zinner.
The spacecraft, launched in 1978 by NASA, had been called the International Sun-Earth Explorer 3 (ISEE-3) as its original mission had been to study the interaction between Earth and the Sun. ISEE-3 was renamed the International Cometary Explorer when, after completing its original mission in 1982, it was manoeuvred to intercept Comet P/Giacobini-Zinner.
ESA's Giotto mission intercepted Comet Halley in 1986.
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9 September
1789: On 9 September 1789, William Cranch Bond was born.Bond was an American astronomer who, with his son George Phillips Bond, discovered Hyperion - the eighth satellite of Saturn. He ...
8 September
1967: On On 8 September 1967, ESOC was founded.ESOC is the mission control centre of the European Space Agency, based in Darmstadt, Germany. It is responsible for the operation of ...
7 September
1914: On 7 September 1914, James Alfred Van Allen was born.American physicist Van Allen's discovery of the Van Allen radiation belts, two zones of radiation encircling Earth, brought about new ...
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