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mercury transits sun orig vstop _00004127
mercury transits sun orig vstop _00004127

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    Mercury makes rare transit across the sun

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Mercury makes rare transit across the sun

NASA's Solar Dynamic Observatory tracked Mercury making a rare transit across the face of the sun. The last time this event happened was in 2006, and NASA predicts it will happen again in 2019.

Mercury makes rare transit across the sun

NASA's Solar Dynamic Observatory tracked Mercury making a rare transit across the face of the sun. The last time this event happened was in 2006, and NASA predicts it will happen again in 2019.