SpaceX Falcon 9 rocket carrying GPS satellites for the Air Force lifts off

CAPE CANAVERAL, Fla. -- A SpaceX Falcon 9 rocket carrying advance GPS satellites for the Air Force is on its way to space.

The rocket lifted off from Cape Canaveral, Florida after several days of delays.

RELATED: PHOTOS: Mysterious streak of light seen in sky above California

The GPS satellites are designed to be more accurate, secure, and versatile.

This was the 21st launch of the year for SpaceX and the last of 2018.