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Science 19 January 2001:
Vol. 291. no. 5503, pp. 409 - 412
DOI: 10.1126/science.291.5503.409B
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News of the Week

ASTRONOMY:
Weird New Exoplanets Leave Theory Behind

Govert Schilling

SAN DIEGO--A prolific U.S. team of planet hunters unveiled the latest pair of extrasolar planetary systems at a conference here last week. The masses and orbits of the planets in these two-planet systems are proving difficult for astrophysicists to explain and are showing how little researchers know about the formation of planetary systems.

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