alan-tough-seti

Picture: Alan Tough 2004 speaking at at the International Astronautical Congress, Vancouver BC Canada. Available on Alan Tough's website

Picture: Alan Tough 2004 speaking at at the International Astronautical Congress, Vancouver BC Canada. Available on Alan Tough’s website: http://www.allentough.com/

Picture: Alan Tough 2004 speaking at at the International Astronautical Congress, Vancouver BC Canada. Available on Alan Tough’s website: http://www.allentough.com/