For forty years now the -- sending astronauts to Mars has only been no victory it's dangerous it's complicated from governments it would cost hundreds of billions of dollars. But now comes Dennis Tito will -- -- the first space tourist in 2001. When we bought arrived from the Russian space agency so I just came back from paradise -- -- he's joined a team called inspiration lower than says it could launch a crew of two people married couple. To fly around Mars and safely back. He says the trip would take a year and a half and could happen by the year 2018. That's a great. Step for humanity. And I think it would be really exciting and not only -- our generation. You know younger generations as well. Here's the idea crazy lot of people think so but Tito says his group would use privately built spacecraft that are already being developed. The money would come from private investors who love and adventure and it would not be a government project. Private enterprise might. Be a little bit more flexible. And in this case it it's not a commercial. Mission it's a Philanthropic mission inspiration Mars would you do it. -- says it's time to get started. Ned potter ABC news New York.