Illustration
A half-mile-long stretch of tunnel in Menlo Park, California is now colder than most of the universe.
Photograph
Last cryomodule unload, #41 from Fermilab F1.3-06. This one will be one of a few spares for LCLS-II.
Illustration
The second phase of a major upgrade project is now online at SLAC’S Linac Coherent Light Source (LCLS). On Saturday...