Live coverage: Commercial Cygnus cargo craft arrives at space station

SpaceX launched a Korean communications satellite from Florida on Monday aboard the company’s third Falcon 9 rocket flight of the month. Liftoff from NASA’s Kennedy Space Center occurred at 3:34 p.m. EDT (1934 GMT), and the Falcon 9’s first stage landed on a floating barge in the Atlantic Ocean a few minutes later.

The launch of a light-class booster by Rocket Lab, a U.S.-New Zealand company aiming to provide rides to orbit for small satellites, has been delayed to early next year after technical reviews, repairs and unfavorable weather combined to keep the test flight grounded this week.

SpaceX and its visionary founder Elon Musk win the lion’s share of public attention in the commercial rocket arena, with dramatic, increasingly routine booster landings and spectacular stunts like the launch of Musk’s Tesla Roadster on the maiden flight of the company’s new Falcon Heavy rocket last month.