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Published online 5 June 2007 | Nature | doi:10.1038/news070604-4
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Two new planets lack heavy foundations
A pair of Jupiter-sized planets has been put together from a surprisingly light mixture.
Astronomers have discovered a star that has managed to build two giant planets despite a dearth of the ingredients often thought to be needed for the job.
The star HD 155358, 140 light years away in the constellation of Hercules, is in some ways similar to the Sun — just a bit hotter and smaller.
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