The Enterprise runs on Westinghouse nuclear reactors burning enriched U-235 (93%+). Also, the quoted price tag here seems steep when you could, quite literally,

The Enterprise runs on Westinghouse nuclear reactors burning enriched U-235 (93%+). Also, the quoted price tag here seems steep when you could, quite literally, build the USS Enterprise 52 years ago for $451.3 million USD: http://en.wikipedia.org/wiki/USS_Enterprise_(CVN-65) http://en.wikipedia.org/wiki/USS_Enterprise_(CVN-65) :P