Thumbnail of NASA's Jewelbox Sun pictureNASA have put together a fascinating video of the sun, viewed at different wavelengths, in rotating bands.  Choose an interestng area on the sun's surface, and see different detail:

  • Yellow light generally comes from material of about 6000℃, which represents the surface of the sun
  • Extreme ultraviolet light (coloured green in NASA's images) comes from atoms about 6 million ℃, making it good for observing solar flares which reach that temperature.

By examining pictures of the sun in a variety of wavelengths, scientists can track how particles and heat move through the sun's atmosphere.