Why Is Time Slower In Space Rockets?

You’ve probably heard that if you get in a rocket ship and fly fast, time will slow down. But, unless you’ve majored in physics, you probably don’t quite know why. Fortunately this video does a great job of explaining the phenomenon.

Perhaps one of the most famously odd physical phenomenon, time dilation might not be the key to eternal life, but it sure is interesting. Take a watch. [YouTube]