STEREO Sees the Whole Sun

NASA's STEREO mission - a pair of twin probes monitoring the Sun, have now reached 180 degree separation, allowing us a full view of the whole Sun for the first time.

This allows us to better understand the processes that occur on the Sun's surface, including solar storms and coronal mass ejections. STEREO also gives us 3D imaging of the Sun, allowing us to better place events in space.