Crew members for space shuttle Discovery's STS-124 mission stride out of the Operations and Checkout Building eager to get to the Astrovan that will take them to Launch Pad 39A at NASA's Kennedy Space Center. Leading the way are pilot Ken Ham (left) and commander Mark Kelly (right). Behind Ham are (front to back) mission specialists Ron Garan, Akihiko Hoshide and Gregory Chamitoff. Behind Kelly are (front to back) mission specialists Karen Nyberg and Mike Fossum. Credit: NASA/Kim Shiflett.
