By refocusing our space program on Mars for America's future, we can restore the sense of wonder and adventure in space exploration that we knew in the summer of 1969. We won the moon race; now it's time for us to live and work on Mars, first on its moons and then on its surface. Buzz Aldrin
Google the name Prometheus, and see how often it has been given to innovations in many different fields, notably science, medicine and space exploration. The fire he stole can be seen, too, as the spark generating all artistic creativity. Neil MacGregor
Looking down the road, space exploration and the benefits it yields - in medicine and information technology - should not be overlooked. Bob Barr
Space exploration promised us alien life, lucrative planetary mining, and fabulous lunar colonies. News flash, ladies and gents: Space is nearly empty. It's a sterile vacuum, filled mostly with the junk we put up there. Graham Hawkes
Space exploration is a force of nature unto itself that no other force in society can rival. Neil deGrasse Tyson