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exp GPS 0320 Sellers space climate_00005001
exp GPS 0320 Sellers space climate_00005001

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    On GPS: An astronaut on his final mission

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On GPS: An astronaut on his final mission

NASA Earth Science Director Piers Sellers says he has only 500 days left on this planet and wants to use his time to focus on climate change.

On GPS: An astronaut on his final mission

NASA Earth Science Director Piers Sellers says he has only 500 days left on this planet and wants to use his time to focus on climate change.