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Some scientists, notably Sir Fred Hoyle, believed that comets were a substantial source of water for the Earth. It's even possible that life itself came from space as microscopic spores or bacteria.

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Who first discovered a comet?

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There are various theories about how humans were created, including religious beliefs such as creationism, which posits that humans were created by a divine being. Scientific theories, such as evolution, propose that humans evolved over millions of years through the process of natural selection. Other theories involve the idea of panspermia, which suggests that life on Earth originated from microorganisms or organic compounds brought here by comets or meteorites.


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Where do anthropologists believe all humans come from?

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Where do archeologists believe the first humans came from?

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