An American billionaire has completed the first private spacewalk in a bid to venture further than anyone since Nasa's Apollo Moon missions.Tech entrepreneur Jared Isaacman launched into space on Tuesday from Cape Canaveral in Florida on board a SpaceX Falcon 9 rocket for the Polaris Dawn mission, along with a pair of SpaceX engineers and a former Air Force Thunderbirds pilot.

An American billionaire has completed the first private spacewalk in a bid to venture further than anyone since Nasa's Apollo Moon missions.Tech entrepreneur Jared Isaacman launched into space on Tuesday from Cape Canaveral in Florida on board a SpaceX Falcon 9 rocket for the Polaris Dawn mission, along with a pair of SpaceX engineers and a former Air Force Thunderbirds pilot.