Issues

A mere half century of volcanism seems to have initiated a chill lasting half a millennium.

Even though the bubble’s surface temperature reaches nearly twice that of the Sun, its estimated ionization fraction—nearly 20%—is still puzzlingly large.

Worry, resignation, and optimism mix among Greek scientists as they deal with salary cuts, ever-changing laws, and pervasive uncertainty.

A 2011 National Research Council report found emerging but inconclusive evidence that educational science-based games improve learning.

Uncertainty created by the Budget Control Act of 2011 clouds the outlook for federal science and technology funding. Some Department of Energy physics programs face significant cuts.

Networks that govern communication, growth, herd behavior, and other key processes in nature and society are becoming increasingly amenable to modeling, forecast, and control.

The ancient, metal-poor stars at the outskirts of the Milky Way provide a window on the conditions that governed the universe shortly after the Big Bang.

It’s long been known that the Sun plays host to the most energetic explosions in the solar system. But key insights into how they work have only recently become available.

Nonequilibrium thermodynamics, explosive magnetic field rearrangements, and more contribute to the physics of an atmospheric region that brooks no simple assumptions.