No person has ever left low earth orbit since the apollo program ended in 1970s. Since then the only accomplishment was a extremly expensive space station and space shuttle. However for a cost of around 12% of NASA's budget we could land humans on Mars within a 10 year timeframe. Unfortunatly the Obama admistration plans to cancell all funding for manned and unmanned space exploration. Save the New frontier. Push for Humans to Mars in 10 years. For more information visit marssociety.org