SpaceX delays attempt to land rocket on drone ship - CNET

Update, 3:25 p.m. PT: SpaceX has announced that it's delayed its planned launch due to weather.
"Looking to try again tomorrow," SpaceX said. "Window also opens at 6:46 p.m. ET. Rocket and spacecraft remain healthy."

If at first you don't succeed, try, try again.

Elon Musk's commercial space flight company SpaceX will do just that when it tries once again to land a rocket on a drone barge -- the "Of Course I Still Love You" drone barge, to be specific -- Wednesday off the coast of Florida. This will mark SpaceX's fourth attempt to successfully land a Falcon 9 rocket on an autonomous landing pad at sea. The third try failed in January.

The purpose of the launch is to see Falcon 9 deliver the SES-9 commercial communications satellite into a geostationary transfer orbit, or GTO. After the payload is released -- which is scheduled to happen approximately 31 minutes after liftoff -- the Falcon 9 will once again try to land on the drone barge. If successful, the landing would mark the first time in history such a feat was accomplished.

The landing would be a key milestone for SpaceX's vision of less expensive access to space, driven by rockets that can be reused rather than ending up at the bottom of the ocean. The company launched and successfully landed a rocket for the first time on land at Cape Canaveral back in December 2015.