And in those 50 years, not only did we literally, physically set foot on the moon, but we have dispatched robotic spacecraft to all the planets -- all eight of them -- and we have landed on asteroids, we have rendezvoused with comets, and, at this point in time, we have a spacecraft on its way to Pluto, the body formerly known as a planet.
Sen dess har vi inte bara satt fot på månen. Vi har även skickat rymdsonder till alla våra åtta planeter. Vi har landat på asteroider. Vi har utforskat kometer. Och i denna stund är en rymdfarkost på väg till Pluto- -en himlakropp som tidigare troddes vara en planet.