Mars One has announced plans to send an unmanned trip to Mars in preparation for a manned trip to Mars. So far, two hundred thousand introverted science nerds – whoops, normal people – have applied to be the first Martians.
Currently, Mars One estimates that it will cost six billion dollars to send four people to Mars. Basic math: for less than a trillion dollars, i.e. the national deficit in any of the last five years, we can send all of Congress, plus the White House, to another planet.