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Photo: Bennu NASA http://JohnBatchelorShow.com/contact http://JohnBatchelorShow.com/schedules Twitter: @BatchelorShow Asteroid Bennu evidences geology from a previous planetary body. Bob Zimmerman BehindtheBlack.com https://behindtheblack.com/behind-the-black/essays-and-commentaries/tuesday-at-the-non-existent-lunar-planetary-science-conference/