binary black holes
The ‘Halo Drive’ Would Shoot Lasers at Black Holes to Explore the Milky Way
“If we can’t build something capable of delivering astronomical levels of energy, perhaps we could instead steal the energy from an astronomical object.”
Astronomers Observe Slowest Objects Ever Tracked Through Space
The supermassive black holes of galaxy 0402+379 are a couple of cosmic snails.
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