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spacesuit – n. a protective covering with life supporting equipment to make life in space possible for its wearer
decade – n. a period of 10 years
realm – n. an area of activity of interest; a field of influence
analog – adj. involving a device or process in which information is represented by physical amounts
simulation – n. something is made to look or feel like something else
capsule – n. a small container or a small part of a spacecraft
adapt – v. to change behavior in reaction to one's situation
