US: Aerospace company SpaceX has successfully landed its Falcon 9 rocket on a platform floating in the ocean for the second month in a row. The rocket booster returned to the unmanned ship off the coast of Florida minutes after delivering a Japanese satellite into space. This return was even more spectacular than the previous one because the rocket was carrying much more speed.
SpaceX founder Elon Musk hopes to land and reuse as many Falcon 9 rockets as possible because this could cut the cost of spaceflight by a factor of 100. Now, SpaceX owns three Falcon 9 first stages that have come back to Earth.