Click to enlarge video or view it below.

It was 45 years ago that Neil Armstrong took the small step onto the surface of the moon that changed the course of history. The Apollo missions blazed a path for human exploration to the moon and today NASA is taking its Next Giant Leap to near-Earth asteroids, Mars and beyond. As we develop and test the new tools of 21st-century spaceflight on the human path to Mars, we once again will change the course of history.