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New data that's just been released from NASA's Mercury Messenger spacecraft could reveal how Mercury formed and changed over the 4.5-billion-year history of the Solar System. The planet appears to have shrunk as it has aged. Denton Ebel is the curator of Meteorites at the American Museum of Natural History and is involved in educational outreach programs for the Mercury Messenger mission at the museum. He explains why scientists are finding new reasons to study the planet.

NASA announced that there is definitely water on the moon. Denton Ebel, associate at the American Museum of Natural History and curator of their meteorite collection, explains NASA's findings and what it means about the origins of the solar system.