U.S. Transportation Secretary Sean Duffy is expected to announce a sped-up timeline this week to build a nuclear reactor on the moon. This will be his first major action since President Donald Trump named him interim NASA administrator in June.

Credit: Bloomberg/ The acting head of NASA, Sean Duffy, has made it clear that the United States is in a new space race—but it's a little different this time. Although it still means getting human boots on the Moon,