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Summer solstice tale of 2 cities | | On the June solstice, the sun sets at the same time in New York City and St. Augustine, Florida. But New York has an hour more of daylight. How's that happen? | | |
Space gardening | | Future space outpost dwellers will need to grow plants for food, and to recycle air and water. New NASA video about farming aboard the ISS. | | |
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