Plans for two supercolliders, China could be the collider capital of the world.
The 27-kilometre Large Hadron Collider at CERN could soon be overtaken as the world's largest particle smasher by a proposed Chinese machine.
For decades, Europe and the United States have led the way when it comes high-energy particle colliders. But a proposal by China that is quietly gathering momentum has raised the possibility that the country could soon position itself at the forefront of particle physics