Science Friday Initiative
Science Friday: Seeing a Star in a New Light
NASA's Solar Dynamics Observatory (SDO), launched in February, has started to send back data. The instruments are giving solar scientists an unprecedented look at the sun, says Dean Pesnell, SDO project scientist. The hope is to better...
Science Friday Initiative
Science Friday: Eruptions on the Sun Set Off 'Solar Tsunamis'
Scientists use the waves to measure the sun's magnetic field, which is sometimes weaker than a fridge magnet. [5 mins. 59 secs.]