Billionaire investor Isaacman has been confirmed as the new administrator of the National Aeronautics and Space Administration, ending an extraordinary confirmation journey where Trump nominated him, withdrew it, and then renominated him.
The 42-year-old, an amateur jet pilot who was the first private citizen to perform a extravehicular activity, is also the first NASA administrator in a generation to come straight from outside public service.
For a significant portion of the space community, the success of his tenure will be determined by one pivotal challenge: if NASA can return humans to the Moon in advance of the Chinese space program.
The administration has stated explicitly a desire for the US to establish a sustained presence on the moon, both to allow for mining operations and to function as a stepping stone for journeys to the Red Planet.
On This week, the U.S. Senate confirmed the nomination with a decisive vote.
Trump originally rescinded the nomination in May, pointing to a "deep dive of previous relationships".
At the point, the president was engaged in a dispute with tech billionaire Musk, one of his major contributors, with whom the nominee has a working relationship.
The new administrator has stated he is now fully behind the presidential objective to extract lunar resources, putting him at odds with Musk, who has said that lunar missions is a diversion from the primary objective of travelling to Mars.
In the present global space race, world powers are vying to exploit the moon's resources.
“This is not the time for hesitation but a time for action because if we lose ground, if we err, we may be permanently behind, and the results could shift the balance of power here on our planet,” he told US Senators earlier this month.
The business leader sees bringing in more private sector competition as crucial for achieving those targets, according to a recently leaked document outlining his plan for the agency.
In his Senate hearing, he stood by the blueprint, which he crafted when he was originally put forward, but noted it was a evolving strategy.
His support for multiple providers could also create a conflict with SpaceX. Recently, Isaacman applauded the award of a major contract to Blue Origin, which is one of the primary competitors of Musk's SpaceX.
In the leaked plan, he recommended the agency should increasingly partner with universities and academic institutions, casting the agency as a "amplifier for research".
He pointed to the planned 2027 launch of the Nancy Grace Roman Space Telescope as a flagship example.
"And if we be on the verge of something extraordinary - like deploying the Roman Telescope - I will leave no stone unturned to get the program to the pad, even funding it myself if that's what it requires to deliver the discoveries," he stated.
According to analyses, Isaacman's net worth is valued at around $1.2bn, primarily derived from his payment processing company and the divestment of his business that provided flight training and managed a private fleet of military jets.
The position of agency chief will be his first job in government service, a break from the last two people appointed as NASA chief.
He will succeed the former transportation secretary, who has been the acting administrator since July.