The biggest, most expensive physics machine in the world is riddled with thousands of bad electrical connections.
Many of the magnets meant to whiz high-energy subatomic particles around a 17-mile underground racetrack have mysteriously lost their ability to operate at high energies.
Some physicists are deserting the European project, at least temporarily, to work at a smaller, rival machine across the ocean.
After 15 years and $9 billion, and a showy “switch-on” ceremony last September, the Large Hadron Collider, the giant particle accelerator outside Geneva, has to yet collide any particles at all.