Curiouser and curiouser: a riddle at the ALICE detector

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.

Brian Malow: Science yuks

If someone had told me when I was in high school that one day I would meet Stephen Hawking and have a meeting at NASA, I never could've guessed the trajectory I'd follow to get there. I would've assumed I had become a physicist.

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.

Probing the heart of the atom

The familiar elements of the Periodic Table come in a number of forms, or isotopes—some found only fleetingly in the most violent events, such as exploding stars.