Issues

The star’s core, the remnant of a helium-fueled inferno, is surprisingly rich in oxygen.

X-ray scattering experiments point the way to water’s elusive second critical point.

Climate models explore how changes in the Tibetan Plateau’s latitudinal position and elevation may have affected ancient Asia’s climate.

Bid now or bust: The high-energy physics community is gearing up to plan its future facilities.

Proliferation concerns factor into the decision on whether new domestic production capability is needed.

Air traffic controllers guiding planes, insurance adjusters validating claims, meteorologists forecasting weather, and more want to know where lightning strikes. Modern location systems provide them with the information they need.

Evidence shows that patterns of inequity in physics drive talented women out of the field. Here’s what physicists can do to overcome them.

Passion and creativity drive physics despite difficult circumstances.

The shape and size of aerosol particles influence whether they heat or cool Earth and its atmosphere.