Issues

The dark matter that dominates the rotation and clustering of galaxies is thought to consist of heavy, weakly interacting particles not yet known but much sought after.

An interaction between highly excited atoms can be used to engineer a superposition of low-energy quantum states, as two research groups now demonstrate.

The first plug-in hybrid and all-electric cars are just around the corner, but their batteries still need work.

With the use of accelerators on the rise, a mobile school aims to fill in where universities fall short.

Even as it breathes a sigh of relief, Japan’s research community worries about the negative message the government’s attack on science conveyed to the country’s young people.

With recent visits to North Korea and Cuba, US scientists are seeking interactions with their peers to open channels of communication.

Interactions between different kinds of waves can yield medical images that beat the single-wave resolution limit.

For decades researchers imagined that hydrogen bonding imposes a hexagonal, icelike arrangement on the first water molecules on a solid. Recent theory and experiments argue for a richer view.

Musical illusions created in the laboratory or concert hall provide insight on how the brain regroups auditory inputs.

Cells derive their structural properties from a complex and active arrangement of stiff polymers. How those proteins interact to give rise to the cell’s diverse characteristics remains a key problem in biological physics.