Another success for SpaceX rocket

SpaceX landed one of its rockets on an offshore platform Friday, the third time in two months the private space exploration firm has made a successful landing at sea. The unmanned Falcon 9 rocket sent a Thai communications satellite into orbit Friday from Cape Canaveral Air Force Station in Florida. Then, the first-stage booster landed on the deck of a drone ship off Florida. Most first-stage boosters that have carried people or satellites to space over the past 58 years have been discarded after their launch, often burning up upon re-entry. But landing rockets upright is crucial to cutting the cost of space travel, since they can be reused. SpaceX, founded by Elon Musk, repeated a success made earlier this month when it launched its latest Falcon 9 rocket from Cape Canaveral. The company's first successful sea landing was made April 8. After three failed attempts to land a rocket upright on a platform at sea, SpaceX successfully landed one of its Falcon 9 rockets on solid ground after a launch from Florida's Cape Canaveral Air Force Station in December.