Harvard and Smithsonian (CfA), and its Submillimeter Array (SMA), were critical for identifying a cache of belts surrounding other stars beyond the sun where comets may reside. Regions around 74 stars ...

For the first time, astronomers have imaged dozens of belts around nearby stars where comets and tiny pebbles within them are ...

Data collected from a once-defunct NASA satellite show that Earth grew two extra radiation belts following a supercharged geomagnetic storm in May 2024, including a never-before-seen structure that is ...