The SpaceX Falcon 9 rocket will break a record by carrying the largest number of satellites into orbit,
It will be the 18th launch of internet satellites into orbit.
The rocket will carry 133 commercial and government mini-satellites and 10 Starlink internet satellites of SpaceX.
The rocket is to launch from Cape Canaveral, Florida, from 9.40 am to 10.22 pm US East Coast time.
The first reusable stage of the Falcon 9 rocket will land vertically on the Of Course I Still Love You drone ship.