MOJAVE - A fledgling rocket plane racing league has announced the addition of three more teams, bringing its total to six. The Rocket Racing League, which will fly aircraft built in Mojave, announced the additions of Rocket Star Racing, Team Extreme Rocket Racing and Canada-based Beyond Gravity Rocket Racing. They join existing teams Bridenstine Rocket Racing, Santa Fe Racing and Thunderhawk Rocket Racing. "Our goal has been to bring diverse international teams to the league with highly skilled world-class pilots and flight crews coming from both civilian and military backgrounds," said Granger Whitelaw, company co-founder and chief executive officer. Rocket...