Complex sentence: Marc has collaborated with Mickey Hart, Jerry Garcia, R.E.M., and other performing artists in the creation of live events and touring concerts; produced the first television commercial created on board the International Space Station and established the first international network of Projection Media installations.
Split into simpler sentences: Marc has collaborated with Mickey Hart, Jerry Garcia, R.E.M., and other performing artists in the creation of live events and touring concerts. He produced the first television commercial created on board the International Space Station and established the first international network of Projection Media installations.