From SLAC, August 31, 2022: Fermilab researchers worked with a team of 20 operators and engineers at SLAC on cryogenics to build a helium-refrigeration plant to lower the LCLS-II accelerator to superconducting temperatures. Now, it only takes one and a half hours to make a superconducting particle accelerator at SLAC colder than outer space.
The Department of Energy has formally approved the start of full construction for the PIP-II project, an upgrade to the Fermilab accelerator complex that includes a new linear accelerator. PIP-II is an essential enhancement that will power the world’s most intense high-energy neutrino beam. It is the first particle accelerator built in the United States with significant contributions from international partners.
From The Big Think, January 6, 2022: Particle physics needs a new collider to supersede the Large Hadron Collider. Muons, not electrons or protons, might hold the key.