Explain it in 60 Seconds: Lattice QCD

A new leader for CERN

In his first few months on the job, CERN Director-General Rolf-Dieter Heuer opens new lines of communication, oversees repairs to the Large Hadron Collider, and promotes a worldwide strategy for particle physics based on a strong mix of global, regional, and national projects.

Violating parity

This doodle pad was used by Columbia University researcher Tsung-Dao (T.D.) Lee during talks with Chen Ning (Frank) Yang, while they were visiting scientists at Brookhaven National Laboratory in the summer of 1956.

Neutralino

Whereas matter on Earth and in stars is made of atoms and nuclei, scientists know that dark matter must be made of something else. Neutralinos are a prime candidate.

The contraption is just a dirt-dampness detector. Honest.

Marek Zreda and Darin Desilets of the University of Arizona approached airport security with a suitcase full of tubing, cables, electronic devices, and wires. The guard opened it. Lights started blinking.

Jessica Reed: Custodians of the strong force

Biodegradable Café

At SLAC's Linear Café, a potato doesn't just go on your fork. It is your fork. The cafeteria began a green initiative about five months ago, abandoning traditional plastic spoons and plates in favor of biodegradable counterparts.

Result of the week

Behind every big breakthrough is a series of small steps that build on each other to enhance our understanding of the universe. At Fermilab’'s Tevatron Collider, physicists have been telling the unfolding story of their experiments in weekly installments for more than five years.

Cosmic rays spray art across a lawn

Bluish lights flash on a grassy field, like giant fireflies angling for mates—sometimes a single flash, sometimes a ripple of light moving fast, as if suitors have given chase. Then all 16 lights flash at once, and the whole field glows.