SpaceX, NASA astronaut launch to International Space Station called off at last minute

SpaceX and NASA have called off an astronaut launch to the International Space Station after an issue with the rocket’s ground system was detected. With about two minutes left on the countdown clock, the launch was called off because of a problem related to the TEA-TEB ignition fluid, which is used to ignite the SpaceX Falcon 9’s rocket engines at liftoff. More

(Source: CNN - Feb 27)