US fails again in landing satellite on drone ship

Washington, March 5: US space firm SpaceX successfully sent a European commercial communications satellite into space but failed to land it on a drone ship, media reports said on Saturday. The space firm failed in an attempt to softland the spent first stage of its Falcon 9 rocket on a drone ship in the Atlantic Ocean on Friday, Xinhua news agency reported. SpaceX achieved one successful soft landing in December last year on a land-based pad at Cape Canaveral, but its three previous attempts to land the first stage on an ocean drone ship - in January 2015, April 2015, and January 2016 - all failed. About one hour after launch, SpaceX CEO Elon Musk tweeted: "Rocket landed hard on the droneship. Didn't expect this one to work ... but next flight has a good chance." The failure was not a surprise as SpaceX itself had little hope for the rocket recovery test, part of the company's efforts to produce a fully reusable rocket. SpaceX said a reusable rocket would dramatically reduce the cost of space transport.  Traditionally, rockets are designed for a single use only, burning up or crashing into the ocean after lift off. The Falcon 9 rocket shot into the sky from Cape Canaveral Air Force Station in the US state of Florida, carrying a commercial communications satellite called SES-9, which would deliver television and high-speed broadband services to the Asia-Pacific region. The rocket's first stage separated about 2.5 minutes after launch and then performed a series of engine burns for an experimental landing on the "Of Course I Still Love You" drone ship, which was stationed in the Atlantic Ocean off the Florida coast. This time, the SES-9 was headed for the Geostationary Transfer Orbit, about 36,000 kilometres above the Earth, which required the rocket to fly faster than usual. This made it more difficult for a landing after stage separation. SpaceX said in a pre-launch statement that "a successful landing is not expected".