We May Have Finally Solved an Ultra-High-Energy Cosmic Ray Puzzle

We may have finally solved an ultra-high-energy cosmic ray puzzle

The IceCube neutrino detector has allowed researchers to resolve a debate about what types of particles make up ultra-high-energy cosmic rays – but much remains unknown about these rare events

Scientists Recreate Cosmic Ray Physics Using Cold Atom in New Laboratory Study

Scientists have successfully recreated Fermi acceleration in a lab using ultracold atoms and movable optical barriers, simulating how cosmic rays gain energy in space. Developed by teams from Birmingham and Chicago, the mini Fermi accelerator marks a major advance in particle physics, opening doors to high-energy astrophysics studies and innovations in quantum technology and atomtronics.