Issues

In the early 1990s, NASA’s Cosmic Background Explorer first revealed the microwave background’s spectral perfection—and spatial imperfection—required by Big Bang cosmology.

A new experiment demonstrates one exception to a well-known rule: The angle of incidence is not always equal to the angle of reflection.

Two interference experiments—one using the Kerr effect, the other using the Josephson effect—confirm strontium ruthenate’s exotic pairing.

A number of large corporations are turning “green” not because of the reality of global warming, but in anticipation of federal regulations.

Investments by China could shift the mode of international research collaborations in geoscience.

As China implements its plan to improve scientific innovation, it will need to solve such political and economic problems as finding the proper balance between indigenous efforts and engagement with the global community.

Over its 20-year history, the atomic force microscope has gradually evolved into an instrument whose spatial resolution is now fine enough to image subatomic features on the scale of picometers.

Physics so permeates today’s world that we often can’t even see it.

New methods being developed for future extraction of plutonium and uranium from nuclear waste incorporate safeguards against weapons proliferation.