In this NASA eClips video segment, learn how NASA uses sand to protect the space shuttle. The shuttle must have a protective covering that can withstand extreme temperature changes when it enters and exits Earths atmosphere again and again. In this video segment find out how the shuttle tiles are made from sand and how the sand is used as a protective layer to keep the astronauts and the shuttle safe.
i liked this video :)
seen it yesterday! lets chat 3T
146572 3 years ago