12 September
1959: On 12 September 1959, the Soviet spacecraft Luna 2 was launched. It became the first Earth-made object to hit the Moon. The spacecraft was sterilised to avoid contaminating the ...
27 FEAB. 2004
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2029
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1994: On 13 September 1994, ESA's Ulysses spacecraft reached a point less than 10 degrees from the Sun's south pole.
Just as the polar regions of Earth were the last to be explored, so it is with the Sun. Many spacecraft have investigated the stream of electric particles known as the solar wind. Ulysses, developed by ESA, built by European industry and flown in collaboration with NASA, was the first to fly through the solar wind coming from the poles.
As Ulysses reached its highest solar latitude of 80.2 degrees, researchers met at a scientific workshop in the Netherlands to assess the results from the nine experiments carried by the spacecraft.
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11 September
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, ...
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 ...
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 ...
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