Issues

One of biology’s most-studied signaling pathways may have a heretofore hidden purpose: preventing bottlenecks in cells’ metabolic assembly lines.

Finding a radio pulsar within a light-year of the Milky Way’s supermassive black hole takes some of the guesswork out of modeling the monster’s feeding habits.

A new camera makes it possible to collect angular information about all products of a reaction at once.

Moving forward requires closer global collaboration from design to realization.

A Department of Energy advisory committee warns that the US will fall behind other nations without a world-leading free-electron laser x-ray source.

A watchdog group alleges Nuclear Regulatory Commission requirements are insufficient to guard against a 9/11-sized attack. The NRC and the nuclear industry disagree.

By rapidly evaporating as they fly through the Sun’s hot outer atmosphere, sungrazing comets reveal an otherwise invisible magnetic field that shapes the very beginnings of the solar wind.

Thinning sea ice, thawing permafrost, and greening tundra are among numerous pervasive trends in today’s Arctic.

Perhaps the fundamental parameter of cosmology, the ratio of an object’s recessional speed to its distance from us encodes information about the universe’s age, composition, and structure.

Like the more-familiar detergents, tiny particles can help keep emulsions and foams from separating into their component fluids. But their unique properties also enable novel applications.