Rare planet circles just one of a pair of stars

Odd trio may help astronomers test ideas about planet formation

THREE’S A CROWD  A frozen, rocky planet orbits one of a pair of faint red stars (center and right), roughly 3,300 light-years away, as seen in an artist’s illustration. 

Cheongho Han, Chungbuk National University, Republic of Korea

Astronomers have discovered a frozen, rocky planet orbiting one of a pair of faint red stars.