"It's amazing what's going on up here," said Chamitoff. "This is just the beginning. Overall, the mission's been a great success," said Kelly from space. "I certainly have a great crew and they're well trained, but there's also a little luck involved." June 11 (Flight day 12)Discovery undocked from the International Space Station's Harmony Module, at 11:42 UTC. Discovery then conducted a fly-by of the ISS, so pictures could be taken. Saying goodbye to the ISS and its crew, commander Kelly said "We wish them the best with their expedition and we hope we left them a better, more capable space station than when we arrived. Sayonara." Afterwards the crew of Discovery conducted the late inspection of the shuttle's Thermal Protection System that was unable to be performed as usual on Flight Day 2, due to the size of the Kibō Pressurized Module. June 12 (Flight day 13) Flight day 13 was a rare off-duty day. The only major projects were stowage of the Orbiter Boom Sensor System (OBSS) and an orbit adjustment burn. During the day, pilot Kenneth Ham conducted an interview with Mike Greenberg and Mike Golic of ESPN, to be aired on their radio show, Mike and Mike in the Morning, the following morning on ESPN Radio and ESPN2. June 13 (Flight day 14) The crew conducted routine testing of the steering jets and an examination of the flight control system. During these tests, a shiny object was noticed trailing the shuttle. This was identified as a thermal clip from the shuttle's rudder speed brake, and should pose no danger during landing. June 14 (Flight day 15, Landing) The crew worked through their lengthy list of deorbit preparations, which continued for most of the day. They closed the payload bay doors at 11:30 UTC, which took place without incident. All of Discoverys systems were nominal, and with the weather looking very good at KSC the deorbit burn took place on schedule at 14:10 UTC for landing on runway 15 at 15:15 UTC. At 12:00 UTC, the decision was made to use runway 15 rather than 33. This decision was made based on the sun glare that would be present on the Commander's window as he lined up Discovery with the runway. Extra-vehicular activity Three spacewalks were scheduled and completed during STS-124. The cumulative time in extra-vehicular activity during the mission was 20 hours and 32 minutes. Wake-up