On the migration of early Americans

Tabitha M. Powledge reviews coverage of two new papers from competing labs on the First Americans migration, one paper in Nature and the other in Science: "In fact, although you wouldn’t know it from the media, which loves a fight, the papers are in broad agreement about the data and even about its implications for theories of migration." Also, what motivated Stephen Hawking to give his endorsement to Yuri Milner’s $100 million project to search for alien life?

July 25, 2015

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