Watch the staggering footage of SpaceX testing its #Starship engine

ELON MUSK'S SpaceX has shared staggering footage of a full-duration test of its Starship Raptor engine.

PUBLISHED: 08:30, Mon, Sep 28, 2020 | UPDATED: 08:30, Mon, Sep 28, 2020

The SpaceX video shows 15 seconds of the Raptor Vacuum engine spewing a jet of scorching gas. The Raptor Vacuum is a variant of the firm's Raptor family of engines designed for use in space. The engine will one day serve SpaceX's proposed fleet of Starships - a spacecraft designed to ferry humans to and from Mars.

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SpaceX tweeted: "Completed a full duration test fire of the Raptor Vacuum engine at SpaceX’s rocket development facility in McGregor, Texas."

The short video starts with a puff of smoke from the rocket engine's nozzle, followed by a jet of gas.

The sheer power of the rocket engine is causing the camera to vibrate.

Within the jet is a bright, white plume - a so-called mach diamond or shock diamond.

READ MORE: SpaceX launch schedule: Every launch and mission this year

SpaceX news: Raptor Vacuum engine test fireSpaceX news: The rocket firm filmed a test of its Raptor Vacuum engine (Image: SPACEX)

SpaceX news: Raptor Vacuum engine testSpaceX news: Three of these engines will be fitted on the Starship spacecraft (Image: SPACEX)

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Mach diamonds occur when a jet exhaust travels faster than the speed of sound and at pressures different to the atmosphere.

The video, which was posted online on Friday, has since been seen more than two million times.

One excited SpaceX fan tweeted in response: "Go SpaceX!!!"

Another person said: "That looks crazy the flame looks so nice."

And a third tweeted: "Wow! The power of RVac is incredible."

SpaceX fact sheet: Incredible facts and figuresSpaceX fact sheet: Incredible facts and figures (Image: EXPRESS)

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