Because he stargazes for as long as eight hours at a time--from after sundown until sunup--he also has installed a space heater, a minifridge stocked with Diet Coke and a CD player that serenades him with Mozart string quartets.

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When will the final diet-tracking product reach the space station?

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The chimps are fed a good diet of vegetables, have toys and plenty of space in which to play.

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