Answers (2)
There are four states: solid, liquid, gas, and plasma. Astro-physicists usually don't want to bother with plasma and will go to great efforts to avoid having to admit that it exists. For instance they were forced to admit that the northern lights are caused by charged particles passing through gas in low pressure, but they refuse to call that an electric current; they call it a solar wind. Since a current always travels in a circuit, they are unaware of the connection to the torus of charged particles around the equator, which they call a radiation belt.
www.thunderbolts.info/tpod/00subjectx.htm