Atom smasher shows vacuum of space in a twist

摘要

Ephemeral vortices that form in the vacuum of space may have been spotted for the first time. They could help to explain how matter gets much of its mass.rnMost of the mass of ordinary matter comes from nucleons -protons and neutrons. Each nucleon, in turn, is made of three quarks. But the quarks themselves account for only about 1 per cent of the mass of a nucleon.