NASA's mission control will meet tomorrow to discuss their next moves, if they can get the engine problems under control.

The next-generation rocket programme was meant to blast off last night from Florida's Cape Canaveral, but was delayed due to an engine bleed.

US correspondent Anna Burns-Francis told Kate Hawkesby it doesn't look like this will be an easy fix.

She says NASA has four days to make a decision, but there is no word yet on whether they'll go ahead with the save the date on Saturday.

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