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ALICE with one door open

Curiouser and curiouser: a riddle at the ALICE detector

12/09/25
Sarah Charley

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.

11/01/07

Free for all

The next big experiment in particle physics won’t need an accelerator, detector, or other big machine. It doesn’t even involve subatomic particles—unless you count the electrons that flow through electronic circuits, carrying bits of information from one human brain to the next.

Logbook of September 2007
09/01/07

First HERA collisions

On October 19, 1991, at 6:50 p.m., Bjørn Wiik logged the first collisions in the new electron-proton particle collider at the Deutsches Elektronen-Synchrotron in Hamburg.

09/01/07

From rivets to ribbits

An impromptu frog habitat vanished with final repairs to the roof of Fermilab's Meson Lab. Leaks—lots of leaks—have plagued the lab's 12 blue and orange concave arches since it opened 32 years ago.

09/01/07

Particles in the sky

What is the universe made of? What are matter, energy, space, and time? How did we get here and where are we going? In particle physics, the classic place to look for answers is in giant accelerators where particles collide. But nature also provides a wealth of data.

09/01/07

Fermilab's path to the future

Fermi National Accelerator Laboratory in Batavia, Illinois has a challenge: how will it maintain its central role as a place where particle accelerators produce groundbreaking discoveries in physics?

An illustration of a hand writing an equation
09/01/07

Theory

Theories describe scientists’ understanding of observed phenomena.

09/01/07

Computing center in a box

Stanford Linear Accelerator Center's newest computing center arrived in a standard 20-foot-long shipping container.

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