A new Sun as Art exhibit offers artistic interpretations of the Sun (with captions) based on solar images from NASA's Solar Dynamics Observatory (SDO).
The Radiation Belt Storm Probes (RBSP) launch on September 6, 2012. RBSP will study two extreme and dynamic regions of space known as the Van Allen Radiation Belts that surround Earth. Want to learn more?
The largest, single, challenge for astronauts traveling to Mars will be to overcome exposure to solar storms and radiation.