A Study About Nothing

A vacuum is a space absolutely devoid of matter, at least according to the Merriam-Webster dictionary. But if you talk to a physicist you may get a different answer. According to quantum physics, even vacuums are not completely empty. Constant fluctuations in energy can spontaneously create mass not just out of thin air, but out of absolutely nothing at all. "It's like a boiling sea of appearing and disappearing particle pairs," said James Koga, a theoretical physicist from the National Institut...