Nearly 10 months after Vice President Mike Pence directed NASA to return astronauts to the Moon by 2024, the space agency has estimated how much its Artemis Program will cost. NASA says it will need an additional $35 billion over the next four years—on top of its existing budget—to develop a Human Landing System to get down to the Moon's surface from lunar orbit while also accelerating other programs to make the 2024 date.

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