SpaceX fires up giant new Starship booster ahead of test flight (video)

SpaceX's next Starship rocket just took a big step toward flight.

The Starship first-stage prototype known as Booster 9 conducted a static fire test today (Aug. 6), briefly igniting its 33 Raptor engines while anchored to the orbital launch mount at SpaceX's Starbase site in South Texas.

Not all of the engines performed perfectly; four of them shut down prematurely, SpaceX representatives said during a webcast of today's test. But 29 out of 33 isn't bad, and both Booster 9 and the orbital launch mount emerged from the test in one piece. So there's plenty of reason for SpaceX to celebrate.

"A big congrats to the Starship team for getting through today's test," SpaceX's John Insprucker said during today's webcast. "That moves us another step closer to our next flight test."

RelatedRelive SpaceX's explosive 1st Starship test in incredible launch photos

The SpaceX Starship Super Heavy prototype known as Booster 9 performs a static fire test on Aug. 6, 2023. (Image credit: SpaceX)

Starship — SpaceX's next-gen transportation system, which is designed to get people and cargo to the moon, Mars and beyond — has one full-up flight test under its belt. 

That mission launched from Starbase on April 20, with the goal of sending the Ship 24 upper-stage prototype partway around Earth; splashdown was targeted for the Pacific Ocean near Hawaii. That didn't happen, however; Starship experienced several problems shortly after liftoff, and SpaceX sent a self-destruct command, destroying the vehicle high over the Gulf of Mexico.

The April 20 launch also caused considerable damage to Starbase's orbital launch mount and some surrounding infrastructure. To keep that from happening again, SpaceX installed a water-deluge system beneath the mount — a water-spouting steel plate designed to dampen the tremendous energy generated by Super Heavy's 33 Raptors.

The new deluge system appeared to work well during today's test, as copious amounts of water jetted upward toward the firing Raptors.

The upcoming flight test will involve Booster 9 and an upper-stage prototype called Ship 25. It will have similar goals as the first liftoff, SpaceX founder and CEO Elon Musk has said.

It's unclear when that launch will take place, however, for technical issues aren't the only hurdles SpaceX must clear. For example, a coalition of environmental and Indigenous groups is currently suing the U.S. Federal Aviation Administration (FAA), which granted a license for Starship launches from Starbase. The suit claims that the agency didn't properly assess the damage that such liftoffs could do to the South Texas ecosystem and requests that a more stringent environmental review be performed before any more Starships take flight from the site.

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Mike Wall
Senior Space Writer

Michael Wall is a Senior Space Writer with and joined the team in 2010. He primarily covers exoplanets, spaceflight and military space, but has been known to dabble in the space art beat. His book about the search for alien life, "Out There," was published on Nov. 13, 2018. Before becoming a science writer, Michael worked as a herpetologist and wildlife biologist. He has a Ph.D. in evolutionary biology from the University of Sydney, Australia, a bachelor's degree from the University of Arizona, and a graduate certificate in science writing from the University of California, Santa Cruz. To find out what his latest project is, you can follow Michael on Twitter.