Readers rightly pointed out that the Relativistic Heavy-Ion Collider at Brookhaven National Laboratory is operating well and colliding a range of particles from protons to gold nuclei, with funding
In 2023, the ALICE experiment was ready for their best year yet, until a mysterious signal threatened everything. As the LHC wraps up its 2025 lead-ion run, physicists recall how they worked together to solve the puzzle.