Scientists at the world's largest particle accelerator have successfully collided beams of protons at the highest energy levels ever seen. There was cheering in the control room at CERN, the European nuclear research center in Switzerland as one of the biggest and most complicated scientific experiments got fully underway. The experiment is seen as a major breakthrough in efforts to understand the fundamental nature of the universe. Doctor Martin White is a research fellow at CERN. "One of the great mysteries of the universe is that most of the mass in the universe is some kind of dark matter. It's some kind of particle that doesn't match anything we've seen before. And if you look into space, you can see this because you can see its gravitational pull. So wonder thing is that we hope to get, recent or earlier, an effective scene in the next two years of some idea of what this dark matter is."编辑于2023/08/16更新