Earth-size planet discovered around cool red dwarf star shares its name with a biscuit

A gray exoplanet in space near a red dwarf star toward the top right A flare erupts off the star
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Astronomers have discovered an Earth-size planet orbiting an ultracool red dwarf star similar in size to Jupiter. The red dwarf, located some 55 light-years away, is 100 times less bright than the sun and exhibits half the temperature of our star.


This new extrasolar planet, or exoplanet, is named SPECULOOS-3 and represents just the second time astronomers have discovered a planetary system around a red dwarf star, the first being the Trappist-1 system

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