The rocket will take off from Cape Canaveral and deliver the satellite into geostationary orbit. That's higher than the average satellite, which means the Falcon 9's first-stage booster will have less fuel left over when it comes back down for a landing. It will also be coming down faster, adding to the difficulty of landing on the 100-foot-wide barge. Although a successful landing isn't expected, SpaceX has surprised us before.

There's an 80 percent chance of favorable weather, according to forecasters.

If you don't mind staying up late, you can watch the launch and landing attempt here.