Jan 14 2008
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(New page: European Space Agency (ESA) scientists announced that the Ulysses spacecraft had made its fourth pass over one of the Sun’s poles. Ulysses, engaged in an 18-year, ongoing...)
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European Space Agency (ESA) scientists announced that the Ulysses spacecraft had made its fourth pass over one of the Sun’s poles. Ulysses, engaged in an 18-year, ongoing joint mission operated by NASA and ESA, had completed an orbit of the Sun every 6.2 years. As it passed over the Sun’s poles, Ulysses occupied a unique position enabling the craft to sample solar winds, a vantage point unavailable to any other spacecraft or Earth-based observatory. This most recent flyby of the Sun’s north pole had occurred a week after scientists had observed the beginning of a new solar cycle. “This is a wonderful opportunity to examine the Sun’s north pole within a transition of cycles,” said Arik Posner, a NASA scientist for the Ulysses program.
European Space Agency (ESA), “Ulysses at the North Pole,” news release, 15 February 2008, http://www.esa.int/esaSC/SEMLLN3MDAF_index_0.html (accessed 17 December 2010); Houston Chronicle, “Ulysses Flies over Sun’s North Pole,” 15 January 2008.
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