プロキシマ・ケンタウリbには地球外生命が存在する可能性があるでしょうか？
Synopsis
もし、我々がプロキシマ・ケンタウリb、地球に最も近い太陽系外惑星であり、アルファ・ケンタウリ系の居住可能な領域に位置 ...
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