By Irene Klotz CAPE CANAVERAL, Fla. (Reuters) - The discovery of three planets that circle a small, dim star could bolster the chances of finding life beyond Earth, astronomers said on Monday. The Earth-sized planets are orbiting their parent star, located in the constellation Aquarius relatively close to Earth at 40 light years away, at a distance that provides the right amount of heat for there to be liquid water on their surface, a condition scientists believe may be critical for fostering life. The discovery marked the first time that planets were found orbiting a common type of star known as an ultra-cool dwarf, the scientists said.
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