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Tag Archives: Aliens Might Shoot Lasers at Black Holes to Travel the Galaxy

Aliens Might Shoot Lasers at Black Holes to Travel the Galaxy

An astronomer at Columbia University has a new guess about how hypothetical alien civilizations might be invisibly navigating our galaxy: Firing lasers at binary black holes (twin black holes that orbit each other). The idea is a futuristic upgrade of a technique NASA has used for decades. Right now, spacecraft …

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