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Thursday, November 8, 2018

We Could Build a Powerful Laser and Let Any Civilizations Within 20,000 Light-Years Know We’re Here. Although… Should We?

Should we build a powerful laser to advertise our presence to any other civilizations out there? Image: MIT News
We Could Build a Powerful Laser and Let Any Civilizations Within 20,000 Light-Years Know We’re Here. Although… Should We?



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