SpaceX stacks the Ship 24 Starship prototype atop Booster 7 at Starbase, its South Texas facility, on Oct. 11, 2022.

SpaceX stacks the Ship 24 Starship prototype atop Booster 7 at Starbase, its South Texas facility, on Oct. 11, 2022. (Image credit: SpaceX via Twitter)

The giant Starship rocket won't be going to space for the first time until at least next year.

The spaceships that were stacked together last week atop the orbital launch pad at Starbase are likely to be used for that landmark test flight.

Booster 7 and Ship 24 have already been tested by the company, but more will be done before they can fly.

We are going very slowly. If there is a RUD on the pad, progress will be delayed by six months. URD stands for "rapid unscheduled disassembly."

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For the first time, there are multiple engines on the Super Heavy.

The Starship vehicle that was stacked on Oct. 11 is slated to fly the program's first-ever orbital test flight, perhaps as early as next month.

The Starship vehicle that was stacked on Oct. 11 is slated to fly the program's first-ever orbital test flight, perhaps as early as November. (Image credit: SpaceX via Twitter)

During the "static fire" tests, the vehicles were kept anchored to the ground while the engines were fired up. The company started all of the Raptors at the same time.

The vehicle's 33 Raptors have been involved in just a few static fires. None of its ignitions have taken place while it was on top of it.

There are likely to be a lot of tests in the coming weeks. According to NASASpaceflight.com, fuel trials will pave the way for more ambitious static fires, which will likely conclude in a full 33 engine firing of Booster 7.

The test flight will end with a splashdown off the Hawaiian island of Kaua'i. After liftoff, booster 7 will make its own waves in the Gulf of Mexico.

The mission could be launched as soon as next month, according to Musk. Sunday's message makes it clear that the company isn't beholden to such a schedule.

A number of customers have signed up to use the enormous vehicle. NASA's Artemis program will include the first crewed landers. The company just announced a second private mission around the moon.

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