Dec 12, 2008

Katherine Trinidad Headquarters, Washington 202-358-1100 katherine trinidad@nasa gov

Rob Navias Johnson Space Center, Houston 281-483-5111 rob navias-1@nasa gov

MEDIA ADVISORY: M08-257

NASA TV TO AIR INTERNATIONAL SPACE STATION BRIEFING AND SPACEWALK

HOUSTON -- NASA will hold a media briefing Dec 18 to discuss an upcoming International Space Station spacewalk NASA Television will provide live coverage of the Dec 22 spacewalk of Expedition 18 Commander Mike Fincke and Flight Engineer Yury Lonchakov

The briefing from NASA's Johnson Space Center will air live on NASA TV Dec 18 at 1 p m CST Questions will be taken from journalists at participating NASA locations The briefers are: - Kirk Shireman, International Space Station deputy program manager - David Korth, Expedition 18 spacewalk flight director

During the spacewalk, Fincke and Lonchakov will deploy and retrieve several Russian experiments on the station's exterior They also will install a device to measure electromagnetic forces imparted on station hardware as the complex moves through low Earth orbit Russian specialists believe electromagnetic interference may have contributed to past problems on the Soyuz spacecraft's pyrotechnic bolts, which allow sections of the vehicle to separate properly during its return to Earth

NASA TV coverage of the spacewalk will begin at 5:30 p m on Dec 22 The spacewalk will start at approximately 6:15 p m and last six hours It will be the fifth spacewalk of Fincke's career and the first for Lonchakov Expedition 18 Flight Engineer Sandy Magnus will monitor the spacewalk from inside the station

For NASA TV streaming video, schedules, and downlink information, visit:

http://www nasa gov/ntv

For more information about the space station and the Expedition 18 crew, visit:

http://www nasa gov/station

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