Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.
Besides stars, the United States Navy uses quasars as beacons. Quasars are distant galaxies with supermassive black holes, surrounded by ... X-Ray Flashes from a Nearby Supermassive Black Hole ...
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At the centers of both, I find not supermassive black holes, but rather towering abstract paintings. And that's because I'm not just inside any old virtual reality exhibit. I'm exploring VR artwork ...