<P> The Space Shuttle thermal protection system (TPS) is the barrier that protected the Space Shuttle Orbiter during the searing 1,650 ° C (3,000 ° F) heat of atmospheric reentry . A secondary goal was to protect from the heat and cold of space while in orbit . </P> <P> The TPS covered essentially the entire orbiter surface, and consisted of seven different materials in varying locations based on amount of required heat protection: </P>

What is the heat shield on space shuttle
find me the text answering this question