[quote=Joshua15555]
Space combat?None of this silly hippe commie battlestar trak wars: A new Enterprise hoo-haa,The Orion Class Battleship. The bestest Cold War project ever, behind all the MBT-70, nuclear A2A missiles, etc.
[/quote]

No... no it wasn't :p

Because right now we've only got one planet, a propulsion system based on nuclear weapons (While possessed of VAST amounts of thrust/specific impulse) is an absolutely terrible idea if you don't have a spare planet to live on :p