SpaceX has seen enormous success with the Falcon 9 and Dragon combo, which are certified to carry both cargo and astronauts into space. Its follow-up will be the Starship. To leave Earth behind, though, Starship needs the Super Heavy booster. Rather than use an inert gas like helium to pressurize the fuel tanks, Super Heavy uses gasses generated on the rocket to do the job. SpaceX has just conducted the longest-yet firing test of the Super Heavy’s Raptor engines, and nothing exploded.
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