BOSS collaboration measures expansion of the universe 11 billion years ago
The BOSS collaboration has looked so far back in time that they observed the period before dark energy began to dominate the largest scales of the universe.
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.