NASA | SDO’s Helioseismic and Magnetic Imager (HMI)
Posted on 28. Jul, 2009 by flyingeraser in Sun
Dean Pesnell, the SDO Project Scientist, explains how the Helioseismic and Magnetic Imager (HMI) instrument will allow us to see activity inside the sun and even on the other side of the sun.
Source: NASAexplorer