But why, some say, the moon? Why choose this as our goal? And they may well ask, why climb the highest mountain? Why, 35 years ago, fly the Atlantic? Why does Rice play Texas?" -- John F. Kennedy
"Fifty-one years ago, a young president asked a question that cut to the heart of the American explorer spirit. For me, NASA's vision statement says it all. Why do we choose to go? To reach for new heights and reveal the unknown so that what we do and learn will benefit all humankind.
NASA astronauts, from the original Mercury 7 to our newest class of eight -- 4 men and 4 women -- have embodied that vision. They have been on the front lines of service to humanity in myriad ways and have lived lives of exploration and adventure.
It is hard to imagine anything more beneficial to humankind than protecting our planet from a dangerous asteroid that could strike Earth with devastating force, something we don't currently have the ability to do. In addition to developing technologies that will aid in our planning for the first human journey to Mars, an asteroid mission will help us learn more about how to prevent an impact from one of these mysterious objects."