SpaceX Cancels NASA Crew Launch Due To Ignition Fluid Problem Two Minutes Before Liftoff

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Space Exploration Technologies Corporation (SpaceX) and the National Aeronautics and Space Administration (NASA) held off for the first time on their crewed launch earlier today due to a problem on the Falcon 9 rocket as the Crew-6 launch was scrubbed just a moments before launch. The teams has started to prepare the astronauts before the launch but as the countdown neared to liftoff, mission controllers informed the crew on board that the teams were encountering a problem with loading the ignition fluid on the Falcon 9 rocket. Then, just a little over two minutes before liftoff, as the launch director was about to give their go ahead for the launch, the mission control center informed the crew that they would have to cancel today's launch.

SpaceX's Falcon 9 rocket uses nine Merlin 1D engines to power the rocket, and they use liquid oxygen and kerosene to generate thrust to lift the rocket off the pad. However, the mixutre of the propellant and the oxidizer needs an ignition source, and for the Falcon 9 this is called TEA-TEB, a short form from triethylaluminum-triethylborane. This highly combustible fluid is responsible for a green flame emitting from below the Falcon 9 rocket just as its engines ignite for launch.

NASA and SpaceX's Crew-6 mission was scheduled to lift off at 01:45 EST earlier today, and before the scrub, things had proceeded nominally. Engineers successfully loaded both the upper and lower stages of the rocket with the fuel and oxidizer, with the launch control tower and the clamps for the Dragon spaceship both separating successfully. The Crew Dragon spaceship had