Atlantis Astronauts Practice For Shuttle Launch

CAPE CANAVERAL, FL - AUGUST 10: (L-R) Space Shuttle Atlantis pilot Chris Ferguson, mission specialist Steven MacLean, of the Canadian Space Agency, commander Brent Jett, and mission specialist Daniel Burbank walk out of the Operations and Checkout building to be transported via the astronaut van to the Kennedy Space Center's launch pad 39-b during the Terminal Countdown Demonstration Test (TCDT) at Cape Canaveral August 10, 2006. The astronauts will be complete the dress rehearsal TCDT this week in preparation for their scheduled August 27 launch. (Photo by Matt Stroshane/Getty Images)