NASA plans to spend over $2 billion on its nuclear-powered Mars mission, with funding allocated across fiscal years 2026 through 2029. The estimate excludes the cost of the SkyFall science mission, which could further strain NASA's budget.
This mission represents a significant investment in advancing space exploration technology, particularly nuclear electric propulsion, which could enable faster and more ambitious deep-space missions. However, the substantial cost and potential impact on the science budget raise questions about resource allocation and priorities within NASA.
NASA is planning a nuclear-powered mission to Mars with an estimated cost exceeding $2 billion. The agency intends to allocate $640 million in fiscal year 2026, $890 million in 2027, $415 million in 2028, and $180 million in 2029 for the program. This funding will be drawn from NASA's exploration account and from funds received through a recent reconciliation bill.
However, the total cost estimate does not encompass the SkyFall science mission, which the new nuclear spacecraft will carry. NASA has not yet released a cost estimate for SkyFall, but researchers have expressed concerns that it could significantly impact the agency's science budget. Few details about the spacecraft have been disclosed since the mission's announcement in March, and NASA's fiscal 2027 budget request did not include any funds for the effort.
The mission, slated for a late 2028 launch, aims to be the first flight demonstration of nuclear electric propulsion. The spacecraft is designed to deliver three helicopters to Mars for scientific data collection and the identification of potential water sources. To meet an accelerated timeline, NASA plans to utilize existing hardware, repurposing the Power and Propulsion Element originally built for the now-canceled lunar space station Gateway. The agency is also partnering with the Department of Energy to design and assemble the mission's reactor.
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