How ‘laser cloaking’ technology could keep Earth safe from aliens

Roe Conn

A view of Earth taken by NASA astronaut Gregory Reid Wiseman of the US from the International Space Station (ISS) on space, September 02, 2014. (Gregory Reid Wiseman / NASA)

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Astronomer and Columbia University graduate student Alex Teachey joins Roe Conn and Anna Davlantes to talk about research he’s done involving the utilization of lasers to hide Earth from aliens searching for life in our solar system.

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