MATERIAL EJECTION

This paper reviews the major discussions and conclusions of the Flares 22 Workshop concerning the physical processes involved in mass ejecta events, with an emphasis on large-scale phenomena, especially Coronal Mass Ejections (CMEs). New insights have been gained from recent data obtained from the SMM and Yohkoh spacecraft and from several new grou nd-based radio and optical instruments, as well as from theoretical ad vances concerning the origins, driving mechanisms and long-term evolut ion of CMEs.