We've figured out how to detect the Sun's magnetic fields, and use Sun sounds to peer deep down in
Global Oscillation Network Group: You'll find links to GONG's worldwide sites, lots of current
science, and educational materials. Frank Hill and LFSUN science advisor John Leibacher work on
The basics of transforming soundwaves on the Sun into information about its interior
(a.k.a. "helioseismology", see Activity 2.3 in the LIVE FROM THE SUN Teacher's Guide), including
links to actual "Sun Sounds."