In this edition of Scientific American for March 2003, there are five articles. First, a look at new evidence that dinosaurs had wings and feathers and could fly. Second, digital entertainment jumps the border. Third, a Maine nuclear reactor tackles the problem of what to do when it's time to retire. Fourth, new evidence may help restore aging bones. And, finally, astronomers are closer to a better understanding of dark matter.
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©2003 Scientific American