Astronomers have found an ancient artifact of our solar system. A never before seen chuck of the inner solar system returning from the Oort cloud. "We think it might been fresh Earth-forming material that had been preserved for billions of years," says the head astronomer.

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Astronomers have found an ancient artifact of our solar system. A never before seen chuck of the inner solar system returning from the Oort cloud. "We think it might been fresh Earth-forming material that had been preserved for billions of years," says the head astronomer.