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Ancient Philosopher: There Might Be Life Forms Not Bound to Earth

Surprisingly, a philosopher may have thought of it first over 2500 years ago

Wade Roush, author of Extraterrestrials, discusses the views of Anaximander (c. 610—546 B.C.E.) Anaximander, a philosopher who lived in Miletus in modern-day Turkey, contributed one key idea. He was the first to propose that Earth is a body floating in an infinite void, held up by nothing. For someone who lived 2,200 years before Isaac Newton, this was a stunning insight. The philosopher Karl Popper called it “one of the boldest, most revolutionary, and most portentous ideas in the whole history of human thought.” Anaximander also thought Earth was a cylinder with the continents arrayed on one flat end, so he wasn’t right about everything. But he did invent the idea of space, a place with no absolute up or…