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Tumor-Busting Viruses

A new technique called virotherapy harnesses viruses, those banes of humankind, to stop another scourge--cancer

By Dirk M. Nettelbeck and David T. Curiel

Meltdown in the North

Sea ice and glaciers are melting, permafrost is thawing, tundra is yielding to shrubs--and scientists are struggling to understand how these changes will affect not just the Arctic but the entire planet

By Matthew Sturm, Donald K. Perovich and Mark C. Serreze

The Unexpected Youth of Globular Clusters

Conventional wisdom says that globular star clusters are the stodgy old codgers of the universe, but it turns out that many of these clusters are young

By Stephen E. Zepf and Keith M. Ashman

The Economics of Child Labor

Campaigns against child labor are most likely to succeed when they combine the long arm of the law with the invisible hand of the marketplace

By Kaushik Basu


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