[1/2] An undated handout image shows an artistic rendering of the mass comparison of the star LHS 3154 and its planet LHS 3154b, and our own Earth and Sun. The mass ratio of this planet with its star is more than 100 times greater than that of Earth and the sun. "We discovered a planet that is too massive for its star," said Penn State astronomer Suvrath Mahadevan, one of the leaders of the study published this week in the journal Science. The planet, called LHS 3154 b, orbits at about 2.3% of Earth's orbital distance from the sun, circling its star every 3.7 days. So a very low mass star should have a disk that is also low mass.

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Persons: Suvrath Mahadevan, Guðmundur Stefánsson, Stefánsson, Mahadevan, Will Dunham, Rosalba O'Brien Organizations: LHS, Penn State University, Handout, REUTERS Acquire, Rights, Penn State, Princeton University, University of Texas, McDonald, Thomson