Laser "porch light" could be a beacon for ETs https://boingboing.net/2018/11/05/laser-porch-light-could-be.html …pic.twitter.com/3mCFCbkFuW
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Laser "porch light" could be a beacon for ETs https://boingboing.net/2018/11/05/laser-porch-light-could-be.html …pic.twitter.com/3mCFCbkFuW