Live coverage: SpaceX supply ship returns to Earth

The 14th Falcon Heavy rocket is scheduled to blast off on a clandestine mission from Launch Complex 39A at NASA’s Kennedy Space Center at 11:54 p.m. EDT (0354 UTC).

Miss Monday night’s launch from Kennedy Space Center? Watch a replay of the Falcon 9 rocket taking off with the Inmarsat 5 F4 communications satellite, a heavyweight spacecraft designed to link airliners, ships and others on-the-go via broadband.

The 21 satellites from York Space Systems are the first in the SDA’s Tranche 1 Transport Layer satellite constellation. SpaceX launched from pad 4 East at Vandenberg Space Force Base at 7:12 a.m. PDT (10:12 a.m. EDT / 1412 UTC).