As physicists have delved deeper and deeper into nature’s mysteries, they have been forced to accept the unsettling fact that our universe is suspiciously fine-tuned to support life.
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.
The United States has contributed the energy and expertise of hundreds of scientists and engineers, and more than half a billion dollars to the construction of the LHC particle collider and two of its experiments at the European laboratory CERN.
Building the parts for the Large Hadron Collider has presented challenges but taught many lessons for both particle physics laboratories and their industry partners.
To deal with the computing demands of the LHC experiments, scientists have created the world's largest, most international distributed-computing system.
When the CERN safety team and I heard the loud rumbling 25 meters underground, we weren't concerned. With no warning, it would have been frightening, but the rush of water through pipes overhead presaged a thrilling event.
In a typical high school physics textbook, says scienceeducation specialist Beth Marchant, only the last chapter is devoted to all the developments since 1900–the stuff that physicists are actually working on today.
In pursuit of some of the most exciting science of our time, the Large Hadron Collider has pushed the boundaries of technology and the scale of science experiments to new extremes.