<ul><li>SpaceX has postponed the first-ever launch of its Starship rocket, designed to send astronauts to Mars, due to a frozen pressurant valve in the booster stage.</li><li>The uncrewed flight was scheduled to lift off from Boca Chica in Texas at 08:20 local time, but was called off just minutes before the launch time.</li><li>The Starship rocket is the most powerful rocket ever built and is seen as a critical part of SpaceX's plans for human space exploration and interplanetary travel.</li><li>Elon Musk confirms the delay of the Starship launch through a tweet, citing the issue with the pressurant valve.</li></ul>

Elon Musk’s SpaceX's Starship Rocket launch postponed just minutes before liftoff

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