View Full Version : Astronauts Wrap Up Third Spacewalk

2006-Jul-12, 06:03 PM
Astronauts Piers Sellers and Mike Fossum wrapped up the third and final spacewalk for space shuttle mission STS-121. During the 7-hour, 11-minute spacewalk, they demonstrated techniques for repairing the shuttle's heat shield if it was damaged during launch. The mock repairs were made using a special "space caulk gun" and several spatulas to spread on the caulking materials. Discovery will detach from the station on Saturday to return to Earth.

Read the full blog entry (http://www.universetoday.com/2006/07/12/astronauts-wrap-up-third-spacewalk/)