We don’t know why the universe appears to be expanding faster than it should. New ultra-precise distance measurements have only intensified the problem.
The U.S. Department of Energy has formally approved the scope, schedule and cost of the PIP-II project at Fermilab. The PIP-II accelerator will become the heart of Fermilab’s upgraded accelerator complex, delivering more powerful proton beams to the lab’s experiments.
A team of young scientists paused their new physics searches to develop an innovative machine-learning tool, which is now helping them narrow in on a rare and messy decay of the Higgs boson.
How is it possible to look at the earliest moments of the universe? Physicists have their ways—and what they find out will tell us a lot about how the universe works today and how it will unfold in the future.