US President Donald Trump said on Tuesday he was nominating Jared Isaacman, the private astronaut and ally of billionaire Elon Musk, for the office of administrator of NASA.

Isaacman was removed from consideration to lead NASA earlier this year amid a high-profile falling out that Trump had with Musk. Sean Duffy, the head of the U.S. Department of Transportation, was named acting NASA chief.

(Woth inputs from agencies)

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