human cloning on Mars Earth year 2023 cloning the perfect human to start new colonization on Mars Published January 1, 2013 at 400 × 299 in In 2023 human will set first step on Mars and start new civilization human cloning human cloning on Mars Earth year 2023 cloning the perfect human to start new colonization on Mars human cloning on Mars Earth year 2023 cloning the perfect human to start new colonization on Mars