That’s where [Steinhauer]’s sonic black holes come in. In these experiments, phonons, packets of mechanical vibrations that stand in for photons, are trapped in a fast-moving stream of fluid.

Why Do Black Holes Form? Black holes form when a huge amount of matter is squeezed into a very small space. Cram enough ...

Black holes are some of the most mysterious objects in the universe, but what if we could recreate their physics in a lab? Scientists have conducted 97,000 sonic black hole experiments ...