Issues

The exotic molecules, though composed of three identical atoms, have an asymmetric structure.

Experiments suggest that dividing Staphylococcus cells are designed to crack under pressure.

Three-dimensional printing can fabricate polymer scaffolds that mimic the orientation of collagen in the tympanic membrane.

Accelerator-based technologies are used in the production and handling of everyday items, from gems to tires to weapons.

Blanket approval for fuel reprocessing and China’s adapting US civil reactor technology for military use are key concerns for lawmakers.

Issues of nuclear nonproliferation and disarmament take a back seat to a Middle East regional nuclear-free zone.

Liquid argon is selected for next-generation experiments.

Starting with the Linac Coherent Light Source in 2009, free-electron lasers are using x rays in new ways. Early results are wowing scientists the world over.

Today’s most popular method for calculating the electronic structure of atoms, molecules, liquids, solids, and plasmas began as a bold hypothesis: The electron density distribution completely characterizes the ground state of a many-electron system.

John Bell, with whom I had a fruitful collaboration and warm friendship, is best known for his seminal work on the foundations of quantum physics, but he also made outstanding contributions to particle physics and accelerator physics.

Light-sheet fluorescence microscopy allows neurobiologists to observe fundamental biological processes in real time.