How are modern spacesuits different than the first ones?
A. Early portable life-support systems were cumbersome and often very tiring to use. In the Mercury, Gemini and Apollo Programs, each spacesuit was tailored to fit a specific astronaut. Today’s Space Shuttle spacesuits come in two major pieces, each of which comes in several different sizes. They have more flexible joints than early spacesuits and better environmental controls. They also can be repaired and reused many times. Spacesuits on the International Space Station are improved versions of these suits.
