Time lapse: Watch the Falcon Heavy placed on pad 39A

An Ariane 5 rocket will make its fourth flight of the year Wednesday, hauling two communications satellites into orbit for Inmarsat, Hellas-Sat and India’s space agency.

Watch a replay of the pre-launch news conference for the SpaceX CRS-10 space station resupply mission is held at the Kennedy Space Center Press Site on February 17, 2017.

SpaceX officials have postponed the launch of a Spanish-owned telecommunications satellite from Cape Canaveral planned for this weekend to conduct additional testing on the Falcon 9’s payload fairing pressurization system, the company announced Saturday.