Sending Earth’s location out to reach aliens is a controversial idea

Scientists think there are 300 million habitable planets in the Milky Way, and some may be home to intelligent life (Image credit: Bruno Gilli/ESO, CC BY)

This article was originally published at The Conversation. The contributed the article to’s Expert Voices: Op-Ed & Insights.

Chris ImpeyUniversity Distinguished Professor of Astronomy, University of Arizona

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