President Trump will propose a 12% boost to NASA’s 2021 budget, with most of the increase aimed at fulfilling his goal of returning U.S. astronauts to the moon’s surface by 2024, according to administration officials.

The increase includes nearly $3 billion in new funding to develop human landers, these officials said, with total agency outlays projected to climb to more than $25.2 billion in one of the largest overall spending increases requested for the National Aeronautics and Space Administration since the 1990s.

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