On Thu, 3 Apr 2003, Jeremy Fowler wrote:

> putting a nuclear powered space craft into orbit. So far no such device
> (known to the public anyway) has been put into space.

Indeed, America has and is the first to test nuclear powered missiles:

http://yarchive.net/nuke/ballistic_drum.html

not exactly what you'd expect, but these were powered by the atom.

--
Programming C shells by the sea shore since 1994.
http://dattaway.org