When did the sun blow away the solar nebula? - Phys.org The story of our solar system's origin is pretty well known. It goes like this: the sun began as a protostar in its "solar nebula" over 4.5 billion years ago. Over the course of several million years, Author : Carolyn Collins Petersen

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Last-modified: 2022-07-12 (火) 00:38:04 (661d)