Watch: SpaceX attempts to launch largest and most powerful rocket to orbit for the first time

Watch as SpaceX halts the launch of its Starship rocket at the last minute on Monday 17 April.

Elon Musk has said on Twitter that a “pressurant valve appears to be frozen” and that was the cause of the postponement.

Ahead of the expected launch, he had warned that there is a good chance it may not happen or could go wrong.

“I guess I would just like to set expectations... low,” Mr Musk said in a Twitter space conversation hosted hours before the scheduled flight.

A number of other dates remain options and Mr Musk has previously predicted that the launch would happen on 20 April.

SpaceX will now attempt to troubleshoot the pressure issue that halted the launch and it will take a minimum of 48 hours to reset the rocket before they can try again.

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