Starship Asterisk*

i couldn't find much

http://www.space.com/businesstechnology ... 00621.html

http://www.nasa.gov/mission_pages/explo ... t/cev.html

http://www.bbc.co.uk/science/space/expl ... ndex.shtml

Anyone have a link to a site(s) were there are future space craft/ship concepts drawn out? I've seen only a couple on the net but would like to see more, preferrably maned concepts but i'd like to look at any. Thanks

If there's no atmosphere in space and no friction, then could a space craft be fired in space to go 10,000 mph and shut off the engine/thrust and travel at 10,000mph forever or until it stopped or was hit by something?