Photos: The World's Largest Atom Smasher (LHC)

Higgs Boson

This track is an example of simulated data modelled for the ATLAS detector on the Large Hadron Collider (LHC) at CERN. The Higgs boson is produced in the collision of two protons at 14 TeV and quickly decays into four muons, a type of heavy electron that

(Image credit: CERN/ATLAS)

This track is an example of simulated data modelled for the ATLAS detector. The Higgs boson is produced in the collision of two protons at 14 TeV and quickly decays into four muons, a type of heavy electron that is not absorbed by the detector. The tracks of the muons are shown in yellow.

Heavy CMS

(Image credit: CERN.)

CMS weighs more than 12,000 tons.

LHC Beauty

The LHCb team stands in front of their experiment, the LHCb detecor, at the Large Hadron Collider in Geneva.

(Image credit: CERN/Maximilien Brice, Rachel Barbier)

Scientists on the accelerator's LHCb (or LHC Beauty) experiment stand in front of their detector, which searches for rare particle decay processes.

Technician in the Tunnel

The LHC tunnel where particles accelerate.

(Image credit: CERN)

A technician works inside the LHC tunnel during the machine's construction.

17 Miles

The LHC tunnel where particles accelerate.

(Image credit: CERN)

The ring of the LHC extends 17 miles (27 kilometers) underneath Switzerland and France.

Ignition Halted

The LHC tunnel where particles accelerate.

(Image credit: CERN)

LHC first fired up in 2008, but went offline shortly thereafter when some of its giant magnets failed because of faulty connections.

Control Room

Scientists watch particle collision data inside the LHC control room.

(Image credit: CERN)

A fish-eye view of the LHC control room, where physicists watch particle collisions as they take place.

Huge Collaboration

Scientists watch particle collision data inside the LHC control room.

(Image credit: CERN)

The LHC experiments include thousands of physicists from dozens of countries.

LHC's ALICE Experiment

The ALICE experiment at the Large Hadron Collider

(Image credit: CERN)

The ALICE experiment at the Large Hadron Collider studies heavy-ion collisions in search of a quark-gluon soup similar to the state of the early universe.

ALICE's Inner Tracker

The ALICE experiment at the Large Hadron Collider

(Image credit: CERN)

An interior shot of an element of ALICE called the inner tracker.

Live Science Staff
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