"An astronaut living in orbit has delivered the International Space Station's first address to the deaf community.

NASA astronaut Tracy Caldwell Dyson recorded a six-minute video for deaf children to give them a glimpse of what life as an astronaut is like. While American Sign Language (ASL) is the fourth most commonly used language in the United States, it had never before been used on the space station, NASA said in a statement.

In the video, Caldwell Dyson also discussed what inspired her, as a hearing person, to learn sign language. . . "

By Zoe Macintosh, posted on www.msnbc.com, July 26, 2010

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CLICK HERE to watch Astrounaut Dyson's message from space