The new timeline will be announced by interim NASA administrator Sean Duffy, according to a report citing internal documents.

The reactor is aimed at powering future lunar missions by 2030. This project follows earlier research funded by Nasa into a smaller 40-kilowatt reactor, initially scheduled for deployment in the early 2030s.

The acceleration of nuclear development is part of the Trump administration’s efforts to focus NASA on human spaceflight. A reactor would be useful for long-term stays on the moon.