News of the WeekAstronomy

Weird New Exoplanets Leave Theory Behind

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Science  19 Jan 2001:
Vol. 291, Issue 5503, pp. 409
DOI: 10.1126/science.291.5503.409b

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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.