SUBMITTED BY ARTHUR N1ORC - AMSAT A/C #31468

Feb. 21, 2007

John Yembrick Headquarters, Washington 202-358-0602

James Hartsfield Johnson Space Center, Houston 281-483-5111

Jessica Rye Kennedy Space Center, Fla. 321-867-2468

NASA TV AIRS SHUTTLE CREW MEDIA SESSION AND SPACEWALK THURSDAY

WASHINGTON - Two human spaceflight events will air simultaneously on separate NASA Television digital channels Thursday, Feb. 22.

At 5 a.m. EST(1000 GMT) two crew members of the International Space Station will begin the fourth spacewalk in the last three weeks. During the six-hour spacewalk, Expedition 14 Commander Michael Lopez Alegria and Flight Engineer Mikhail Tyurin will work to free a stuck antenna on the Progress 23 supply spacecraft. Coverage of the spacewalk on NASA TV's public, education and media channels begins at 4 a.m.(0900 GMT)

The media Channel will break away temporarily from the spacewalk coverage to air a question and answer session between reporters and the STS-117 crew at NASA's Kennedy Space Center, Fla., at 7:40 a.m. The crew will be in Florida to participate in the launch countdown dress rehearsal, known as the Terminal Countdown Demonstration Test. The shuttle crew includes Commander Rick Sturckow, Pilot Lee Archambault and Mission Specialists Patrick Forrester, Steven Swanson, John "Danny" Olivas and Jim Reilly.

Coverage of the spacewalk will continue uninterrupted on the public channel and will resume on the media channel immediately following the shuttle crew event.

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

http://www.nasa.gov/ntv

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