Solar-B, a satellite designed to study the Sun's magnetic field through coordinated measurements of the solar atmosphere, successfully launched from Uchinoura Space Center in Kagoshima, Japan, on 23 September. Data from the satellite's instruments will allow scientists to study in detail how changes in the Sun's magnetic field propagate from the surface through the solar atmosphere to create the magnetic storms that effect Earth. Solar-B, called Hinobe (sunrise) in Japan, complements the Yohkoh (Solar-A) satellite and is a collaboration among the space agencies of Japan, the United States, and Europe. During its three-year mission, it will circle the Earth in a polar orbit, allowing it to have continuous sunlight for nine months of the year. More information can be found at http://solarb.msfc.nasa.gov/