Are we alone in the universe? For over half a century, legendary NASA engineer and best-selling science fiction author, Gentry Lee, has explored every aspect of this question in the realms of space science, robotic exploration and the human imagination. At age 82, he has come to a revelatory conclusion在他快要不行的时候，奇迹出现了，我们也要学会去享受生活中那些美好，
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2026-07-12
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