science

Spread among the billions of trees around the globe are a few special ones, especially worthy of attention. Here are seven of the world's most amazing trees.

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Two years after Richard Nixon created the Environmental Protection Agency, the new institution sent out 100 photographers to document the nationâs environment writ large.Now, those photos have made it out of the root cellar of the National Archive and onto Flickr Commons, where they are getting a wider viewing than they hâve ever received.

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A 10-year effort by a scientist to develop transgenic rainbow trout with enhanced muscle growth has yielded fish with what have been described as six-pack abs and muscular shoulders that could provide a boost to the commercial aquaculture industry.

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Enrico Dini is building sandcastles on the moon. His giant 3-D printer is the first of its kind with the potential to print whole buildings, and it makes them out of solid rock, cutting down a thousand-year-long process into a few minutes. It uses sand, but someday it'll use moon dust.

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