Here's one of the coolest things I've seen in awhile, particularly for someone who's been a fan of the manned space program since its inception. This is Suni Williams, who holds the record for longest space flight by a woman, and was most recently commander of the International Space Station crew that returned to Earth last month. Prior to departure, she led a guided tour of the ISS to let us see what life is like onboard -- how and where the crew works, eats, sleeps, and (probably the most-asked question) goes to the bathroom...