Video replay: Parker Solar Probe launches atop Delta 4-Heavy

The 330-foot tall mobile service tower is rolled away from the United Launch Alliance Delta 4 rocket at Cape Canaveral’s pad 37B in the hours before the scheduled liftoff on Dec. 7 at 6:53 p.m. EST (2353 GMT).

Follow the key events of the Falcon 9 rocket’s ascent to orbit with the Formosat 5 Earth observation satellite for Taiwan’s National Space Organization.

An Air Force missile detection spacecraft will, effectively, lose its position in the Atlas 5 rocket’s cramped manifest over the next few months after the flight-worthiness of a thruster on the satellite was called into question and delayed its Oct. 3 liftoff date.