Related Information for Explorers Club Explorers Club is a progressive rock supergroup headed by the Gardner brothers of Magellan featuring, among others, James LaBrie, John Petrucci, John Myung and Derek Sherinian of Dream Theater, Billy Sheehan, Gary Wehrkamp, Steve Howe, Marty Friedman and Terry Bozzio. Their first album, Age of Impact, was released in 1998 and followed in 2002 by Raising the Mammoth.Trent Gardner: "The idea of the Explorers Club project is to have a different concept each time a way for me to w.. read more