关于这张图
STEREO (Behind) captured this magnificent coronal mass ejection (associated with an M-class flare) that flung a long stream of plasma into space (Aug. 24, 2014). We have combined a view of the Sun in extreme UV light with a broader visible light view of the Sun's corona. It is interesting to note that a lot of the plasma, lacking sufficient kinetic energy to break free from the Sun's gravity, was pulled back into the Sun. Credit: NASA/STEREO <b><a href="http://www.nasa.gov/audience/formedia/features/MP_Photo_Guidelines.html" rel="nofollow">NASA image use policy.</a></b> <b><a href="http://…