SOHO Produces Images of Sunspot Interiors

Judebert writes: "The Solar and Heliospheric Observatory (SOHO, the one that looks at the Sun) has used a Doppler-like device to look underneath the surface of a sunspot. It turns out to be much shallower than expected, but the data does help explain why sunspots last so much longer than theory dictates. NASA's story is more informative, but the pictures and movies at Stanford are spectacular. I've got a new background!"