Earth hails newfound sibling: EB173: “The reddish surface of the sphere, which orbits 39.2 times farther from the sun than Earth does (about 3.6 billion miles away), may have a tarlike covering baked by radiation over billions of years.”
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Earth hails newfound sibling: EB173: “The reddish surface of the sphere, which orbits 39.2 times farther from the sun than Earth does (about 3.6 billion miles away), may have a tarlike covering baked by radiation over billions of years.”