In NASA Kennedy Space Center's Vehicle Assembly Building the newly delivered external tank is lifted off its transporter.

In NASA Kennedy Space Center's Vehicle Assembly Building, the newly delivered external tank is lifted off its transporter. Designated ET-119, the 154-foot tank is being raised to vertical and then will be lifted into a checkout cell for further work. The tank, which will launch space shuttle Discovery on mission STS-121, will fly with many major safety changes, including the removal of the protuberance air load ramps. A large piece of foam from a ramp came off during the last shuttle launch in July 2005. The ramps were removed to eliminate a potential source of damaging debris to the space shuttle. The next launch of Discovery is scheduled for May 2006. Photo credit: NASA/Jim Grossmann