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Practice Listening: Fill in the Blanks (Type In)
ID: #48708
Medium
Mars Mission
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Most likely a Mars mission will require most of the necessary supplies and equipment by unmanned spacecraft to the chosen landing area and their operable condition before the first even arrive. During their long, confined stay, the Mars pioneers may live in an inflatable modular housing unit as a possible for the U.S. crew quarters on the International Space Station. The cylindrical structure would be 27 ft. in and have a foot-thick protective shell when . The shell would be made of almost two dozen layers of material that is stronger than steel. It would also provide from the extreme Martian temperatures that range from-128.3°C during the polar night to 26.6°C at the .
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