Issues

A new imaging technique merges thousands of two-dimensional diffraction patterns from a stream of single particles to construct a high-resolution 3D map of electron density.

As a laboratory experiment shows, when Alice and Bob each have one of a pair of entangled photons, they can transmit data more accurately over a noisy channel.

Reactions orchestrated on chips the size of a penny elucidate protein folding and other complex biological processes.

Science and technology will figure more strongly in Egypt's future, but the first priorities include urgent needs like feeding the hungry and eradicating illiteracy.

A new initiative at CERN aims to tap the shared curiosity of artists and scientists to create mutual understanding, inspire art, and excite people about science.

Economic indices highlight research universities' key role in feeding the innovation pipeline.

Clean energy and basic physical sciences research would continue to shine in the president's budget. But House Republicans want cuts in R&D to begin right now.

The surplus heat needed to explain the loss of Arctic sea ice during the past few decades is on the order of 1 W/m². Observing, attributing, and predicting such a small amount of energy remain daunting problems.

Recent advances are making it possible for optical oceanographers to solve a host of pressing environmental problems.

Today's telescopes cannot look far enough into the cosmic past to observe the formation of primordial stars. If you want to see that process, you need sophisticated numerical simulations.

Sound with frequencies below the human threshold of hearing has long been used for global monitoring of large acoustic outbursts such as those in nuclear tests. Now infrasound is helping scientists detect much smaller events at close range.