This is a moon of the giant planet 47 Ursae Majoris b, which has been discovered in fall of 1995. The planet orbits a sunlike star, but is farther away than Mars is from our Sun, so its mean temperature is around -80°C. If there are moons around this massive world, one of them may well be of Earth size. Tortured by tremendous tidal forces, this moon would be volcanically active, so liquid may exist around hot spots.

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