Very few things
in Nature stay the same for long periods of time. IMAGE scientists have now confirmed
that the plasmasphere also follows this unspoken rule of nature. It apparently shrinks
and grows as the convection of the plasma changes in time. Although scientists have known
about this variability for many years, IMAGE data now confirm that this actually does happen,
and adds new details to how the phenomenon unfolds in time.
(2001: Sandel, B R., Forrester, W.T., and King, R. A)