How much does it cost to send a space ship into space?

Answer 1

It costs $61,200,000 to hire the launch of a Falcon 9, which can put a payload of a little over 13 tons into low Earth orbit. SpaceX is presumably making a profit on this (and attempting to recoup some of their development expenses), so the actual cost is somewhat less.

Pricing for the Falcon Heavy (not actually launched yet, but scheduled for first launch in 2016), which will be able to put 53 tons in low Earth orbit, is $90 million. The Falcon Heavy is theoretically capable of launching 13 tons into a Mars intercept orbit (but that will be a one-way trip; unless you want to stay there, that 13 tons needs to include a rocket capable of getting you home again).