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'Halo Drive' Would Use Black Holes To Power Spaceships - Slashdot

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A new study from researchers at Columbia University in New York suggests future spaceships could use black holes as powerful launch pads to explore the universe. The study "envisions firing laser beams that would curve around a black hole and come back with added energy to help propel a spacecraft to near the speed of light," reports Space.com. "Astronomers could look for signs that alien civilizations are using such a 'halo drive,' as the study dubs it, by seeing if pairs of black holes are merging more often than expected." From the report: Study author David Kipping, an astrophysicist at Columbia University in New York, came up with the idea of the halo drive through what he calls "the gamer's mindset." Using what he called a "halo drive" -- named for the ring of light it would create around a black hole -- Kipping found that even spaceships with the mass of Jupiter could achieve relativistic speeds. "A civilization could exploit black holes as galactic waypoints," he...(continued)
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