NASA: The most well-traveled 55-year-old ever

As the space agency turns 55 today, Crave's Eric Mack takes a visual tour of the legacy created so far.
America's space agency was created by a stroke of President Eisenhower's pen 55 years ago today.
While this makes the National Aeronautics and Space Administration old enough to retire -- or at least get a discount on movie tickets -- NASA is likely only getting started. A birthday is always a good time to reflect on one's accomplishments before forging onward into the future.

If you've got some time on your hands, you can get a sense of the scope of NASA's accomplishments from this selective (but certainly not that short) chronology.
Also, you can take a tour of NASA's greatest hits by browsing the gallery below. It highlights 14 of NASA's most memorable moments and missions.

55 years of NASA milestones (pictures)