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The countdown for a rocket launch typically begins several hours before liftoff, often around T-10 hours, as teams initiate pre-launch checks and preparations. The final countdown, usually starting at T-10 minutes, includes critical checks and fueling operations leading up to the launch. This final countdown culminates in the ignition of the rocket engines at T-0, marking the moment of liftoff.

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1mo ago

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A blastoff is the countdown and launch of a rocket, missile, or spacecraft.


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