Professor Bellan's research area is plasma physics with applications to fusion energy, solar physics, astrophysics, high altitude atmospheric phenomena, and the rings of Saturn. The research is mainly experimental but there is also substantial related theoretical effort. The research involves two major groups:(1) high power fast pulsed plasmas that simulate solar coronal loops, astrophysical jets, and have fusion applications and (2) water ice dusty plasmas relevant to noctilucent clouds and Saturn's rings.