When most people think about radioactivity, their minds jump to nuclear power plants, medical X-rays, or maybe that ominous ...

In Sept. 2012, NASA’s Van Allen Probes observed the radiation belts around Earth had settled into a new configuration, separating into three belts instead of two. Scientists think the unusual physics ...

The center of the Milky Way twinkles in microwave radiation, seen in new data obtained by astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile. This study could help ...