Planet hunters led by astronomers discovered a newly found planet. This planet is an Earth-sized planet that has three times the mass of Earth. There is a possible chance that this planet has liquid water that could exist there. This planet orbits a nearby star at a distance that places it in the middle of the star's habitable zone. The Earth-sized planet has an orbitual period of 37 days. The mass shows astronomers that this is a rocky planet with a surface and has enough gravity to hold on to the atmosphere.
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