Comedian, astronaut candidate and general troublemaker Josh Richards knows his days on Earth are numbered: short-listed from over 200,000 applicants for the first human mission to Mars, and launching without any hope of ever returning, it's increasingly likely he'll die on the red planet. So if YOU were leaving Earth in 10 years time, what would you do before you left?

Josh Richards is one of 100 global candidates for the Mars One Project - a mission to establish a permanent human presence on Mars by launching astronauts to the red planet one-way. After spells as a combat engineer, naval diver, commando, physicist, blasting specialist, fine art technician, and stand-up comedian, Josh finally turned his attention to his childhood dream of going to space. Since 2012, he's spoken in hundreds of schools, universities, and businesses about how humanity will become a multi-planetary species, and how exploring other planets will improve life for those who remain on Earth. He's also the author of Becoming Martian - a humorous look at how colonising Mars will change humans in body, mind and soul. He's currently based in Melbourne but looks forward to moving to Mount Gambier to pursue another life-threatening passion: cave diving.