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Publisher's Summary

In this issue:
"The Dark Side of the Milky Way": Dark matter remains mysterious but its nonetheless helping to explain the odd things about the galaxy.
"A New Ally against Cancer": The FDA recently okayed the first therapeutic vaccine against cancer, and other drugs that enlist the immune system to fight tumors are under study.
"Afghanistan’s Buried Riches": Geologists working in the war-torn country say newfound deposits there could fulfill the world’s desire for rare-earth and other critical minerals.
"The Dinosaur Baron of Transylvania": A maverick aristocrat’s ideas about dinosaur evolution turn out to have been decades ahead of their time.
©2011 Scientific American
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