Issues

After 20 seconds in an optical lattice, the gravitational potential-energy difference between two wavepackets separated by micrometers generates megaradians of phase.

A small simulated peptide’s structure is shaped by the surrounding water’s anomalous dynamics.

Improved device quality is the key to seeing a whole series of superconducting, correlated, and magnetic states in two layers of graphene assembled at a magic angle.

A little-used nuclear fuel may be the foot in the door for a US company hoping to snag a far bigger prize.

Relying on students to rate professors is convenient, cheap, and problematic.

Various sounds in nature shape how animals, including humans, interact with their environment.

The great astronomer linked the speed of planetary orbits to musical scales—and to the harmonious interaction of humans on Earth during a time of religious warfare.

As the world continues to spew carbon dioxide at record levels, it’s becoming clear that emissions reductions alone can’t prevent the greenhouse gas from rising to dangerous levels.

The elements’ electronic configurations help explain why the rare earths are key ingredients in dozens of technological products—cell phones, computer hard drives, and lasers among them.