SpaceX successfuly launches first recycled rocket – video

A recycled SpaceX rocket recovered at sea from its first flight nearly a year ago blasted off again on Thursday from Florida on a satellite-delivery mission. The launch was another key step in founder Elon Musk's plan to slash costs by reusing his rockets. The success is a step toward vastly less expensive spaceflight, which some hope can revolutionize travel in the solar system and take humans to Mars