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laser beams

SCIENCE: Are Aliens Flashing Laser Beams At Us?

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Are aliens using super powerful flashlights to get our attention? Astronomers think there’s a chance they are. Since the invention of the radio, humans have been silently listening to the stars, wondering if we are alone in the universe. But if intelligent alien life does exist, the extraterrestrials could be using other forms of technology to communicate. Astronomers are beginning to not only listen to the cosmos but also gaze toward it for other signs of alien tech: laser beams. Breakthrough Listen, the most extensive Search for Extraterrestrial Intelligence (SETI) program in history, announced that its team will begin looking … Read more

SPACE: Could Aliens Be Using Black Holes and Lasers to Zip Around the Galaxy?

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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 already navigate our solar system using gravity wells as slingshots. The spacecraft itself enters orbit around a planet, flings itself as close as possible to a planet or moon to pick up speed, and then uses that added energy to travel even faster toward its next destination. In doing so, … Read more