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Science 21 March 2003:
Vol. 299. no. 5614, pp. 1827 - 1829
DOI: 10.1126/science.299.5614.1827a
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News of the Week

NASA SCIENCE PROBE:
Gravity Mission Faces Make-or-Break Review

Andrew Lawler

A controversial space mission to test Einstein's General Theory of Relativity has been on the brink of extinction several times in its 4-decade-long development. But just as the $600 million Gravity Probe B mission is finally poised for launch, it faces perhaps its toughest challenge yet.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)