Obtained from NASA's website: <a rel="nofollow" class="external free" href="http://plasmasphere.nasa.gov">http://plasmasphere.nasa.gov</a>
<a rel="nofollow" class="external free" href="http://plasmasphere.nasa.gov">http://plasmasphere.nasa.gov</a> Transferred from <span class="plainlinks"><a class="external text" href="https://en.wikipedia.org">en.wikipedia</a></span> to Commons.