You can watch the liftoff live if you want.
The rocket is scheduled to lift off from the Space Force Station in Florida. The sun rises at 2332GMT. You can watch it here at Space.com or via the company.
After liftoff, the first stage of the Falcon 9 will return to Earth and try to land on the ground. This will be the fourth liftoff and landing for this particular booster.
The Starlink megaconstellation was photographed.
The Starlink internet megaconstellation provides internet service for people around the world. More than 3,300 Starlink satellites have been lofted and thousands more are planned.
The Starlink Version 2 satellites will be larger and more capable than the current version. A project called "Coverage Above and Beyond" will allow T-Mobile customers to beam internet directly to their phones.
If everything goes according to plan, the Starlink V2 batches will be launched aboard the huge, next- generation Starship vehicle, which will also take cargo and people to the moon and Mars. Musk said that the first orbital test flight is likely to happen in November.
Saturday's launch will be the 43rd mission of the company in the next five years. The previous high for launches in a year was 31.
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