SpaceX has announced a new plan to land a spacecraft on Mars. They would send one of their new Dragon 2.0 spacecrafts to Mars in 2018. It would be an unmanned flight, but still the biggest thing ever landed on the Red Planet and would be a dress rehearsal for future manned flights. Tom Jones joined John to talk about the new space project, Tom is a former NASA Astronaut and author of the new book “Ask The Astronaut.”