Photo Challenge: How Are You Gaining Momentum?

People around the world were thrilled by Felix Baumgartner's space jump this week. We watched in awe as he set a new record for skydiving, launching himself from the stratosphere and landing safely in New Mexico. His actions have already inspired some follow-up, such as the world's shortest freefall. Best of all, his entire sound barrier-breaking journey was well-documented -- everything from his pre-launch preparation to the the footage from his suit was captured on film. We can't all jump from...