SpaceX launches mega Starship rocket for second test flight

SpaceX's 'Starship' rocket, the largest ever built, blasted off from the space company's Texas launch site. CEO Elon Musk hopes the ship will one day colonize Mars and NASA is awaiting a modified version to land humans on the Moon. Unlike the previous such attempt in April, the booster rocket separated successfully from the mega ship, but then blew up, followed shortly by the spaceship itself.