The Falcon 9 rocket at Cape Canaveral Air Force Station is carrying a communications satellite into orbit for a European company.



The mission is another chance for SpaceX to attempt an ocean landing with its reusable rocket.



It will be the fourth attempt to land the rocket on a drone ship and expectations are low.



SpaceX is flying an upgraded version of the Falcon 9 for the second time since December. SES has waited nearly a year for the launch after a failure in the summer grounded the Falcon 9 for six months.



"This is the first of a series of sevem missions that we're going to be running over the next two years. Basically five of those will be with the Falcon 9 and with SpaceX and two with another launch provider," Martin Halliwell, CTO of SES.



The launch is scheduled for 6:46 p.m. Wednesday.