High-energy physicists from across the United States are meeting to consider and refine a proposal for a major new U.S. particle collider, the Electron-Positron Linear Collider. Many believe such a collider could help confirm a theory known as supersymmetry, resolving many of the unanswered questions in their present understanding of elementary particles and the forces that act on them.
Scientists from the Department of Energy's Brookhaven National Laboratory announced that its new particle accelerator, the Relativistic Heavy Ion Collider, had created the highest density of matter ever made in an experiment.
Physicists have come up with a way to test superstring theory using existing particle accelerators.