Scientists may have discovered the most powerful particle collider in the universe

Supernovas can generate ultra-powerful cosmic rays, but only under specific conditions. New research shows that stars must lose significant mass before exploding, creating a dense shell of material. When the supernova shock wave hits this shell, it briefly accelerates particles to extreme energies, producing cosmic rays up to 1,000 times more powerful than those created by the Large Hadron Collider.