I don't know why such a big deal is made about exploring space and getting into space when the Earth is already in space.
If we need to go to Mars, why not build a large rocket into the side of the Earth and push the entire planet in Mars' direction? No need to develop a special spacecraft with limited capacity and only "the chosen few" get to escape? Additionally, as the whole planet moves further from the Sun, global warming is reduced due to decreased solar radiation and the penguins will live, the ice caps will grow massively, and green peace will be unemployed.
Once we get to Mars, everyone knows you just have to put your hand on the thing with the alien's handprint on it, wait a few minutes and an atmosphere is produced that will let everyone breath and live happily every after. We can then ditch Earth, or use it as a prison planet.