Science: Smallest Extrasolar Planet Found

Society | June 17, 2005, Friday // 00:00

Astronomers have detected the smallest extrasolar planet yet: a world about seven and a half times as massive as Earth, orbiting a star much like ours.

All of the 150 or so exoplanets found orbiting normal stars are larger than Uranus, itself 15 times Earth's mass. The new find may be the first rocky world found around a star like our Sun.

The newly discovered "super-Earth" orbits the star Gliese 876, located 15 light-years away in the direction of the constellation Aquarius.

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