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New Debate over How to Contact Alien Life

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New Debate over How to Contact Alien Life

Space

New Debate over How to Contact Alien Life

New Debate over How to Contact Alien Life

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  • <iframe src="https://www.npr.org/player/embed/3883754/3883755" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

Space probes Pioneer 10 and Pioneer 11 carry a plaque with symbols meant to make alien contact possible. NASA hide caption

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Researchers writing in Nature this week argue that radio signals are not the most efficient way of alerting an extraterrestrial intelligence to our existence — and that anyone out there who is trying to send out a similar message is likely to have reached the same conclusion.

The scientists recommend sending, and searching for, an interstellar message in a bottle. NPR's David Kestenbaum reports.

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