Thursday, July 10, 2014

Tonight's Sky for July 10: ESA's Giotto Completes Flyby of Comet Grigg-Skjellerup (1992)


On this date in 1992, the European Space Agency's Giotto space probe, which had become the first space probe to photograph a comet up close when it completed a flyby of Halley's Comet in 1986, re-awoke and completed another such mission with a lesser-known comet, Grigg-Skjellerup. On its flyby, Giotto came to within about 100 miles of the nucleus.


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