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Science 17 June 2005:
Vol. 308. no. 5729, p. 1727
DOI: 10.1126/science.308.5729.1727a
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News of the Week

ASTRONOMY:
Extrasolar Planets Get Smaller and (Possibly) Harder

Robert Irion

Astronomers have identified the littlest planet known to orbit a normal star, with a likely mass just 7.5 times that of Earth--half the size of the previous record-holder.

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