Astronomers have long held that one of the reasons the Earth has been able to support life while other planets cannot is due largely to its very particular distance from the Sun. According to an article published by Cornell University in 2015, the Earth could only be from between 0.95 AU to 1.69 AU away from the Sun and still support life, often called the Goldilocks Zone. To remind you of 6th-grade astronomy, 1 AU is about 93 million miles. Moons throughout the solar system, however, also...

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