An experiment in the frozen wastes of Antarctica has revealed evidence of a universe born in the same Big Bang as ours – but with rules of physics that are completely the opposite.
That’s something that scientists have long known is theoretically true based on a few facts: Every particle or group of particles in the universe is also a wave—even large particles, even bacteria, even human beings, even planets and stars. And waves occupy multiple places in space at once. So any chunk of matter can also occupy two places at once. Physicists call this phenomenon “quantum superposition,” and for decades, they have demonstrated it using small particles.
But in recent years, physicists have scaled up their experiments, demonstrating quantum superposition using larger and larger particles.