
A Gas of Steel Balls
Marbles are more difficult to understand than atoms or molecules

A Gas of Steel Balls
Marbles are more difficult to understand than atoms or molecules

The Amazing Acenes
Organic crystals show siliconlike abilities and may elucidate fundamental physics

The Coolest Gas in the Universe
Bose-Einstein condensates are one of the hottest areas in experimental physics

The Tau of Neutrinos

Miss-ile Defense

Different Stripes
Physicists still struggle to explain high-temperature superconductivity

Einstein's Constant

Atomic Dead Letter

Three-Star Performance
Tomography from the ground could outdo the Hubble and its successor

Fireballs of Free Quarks
CERN appears to have spotted the long-sought quark-gluon plasma--last seen during the big bang

THE NONNEGLIGIBLE LIGHTNESS OF GRAVITY
Physicists verify that even gravity itself has weight

The Nobel Prizes for 1999
Explanations of the science underlying the world's most prestigious awards for physics, chemistry and physiology plus a look at the prizes for peace, won by a physicians organization, and economics

QUANTUM CLAUSTROPHOBIA
Physicists create Fermi degenerate matter, the stuff of neutron stars, in an ultracold gas

Quantum Déjà Vu
In an exquisite "quantum nondemolition" experiment, physicists see a single photon and then see it again

QUBIT CHIP
A superconducting chip suggests a practical path to medium-scale quantum computing

QUANTUM SCULPTING
Feedback enables researchers to control an atom's wave function