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The space environment refers to the physical conditions and phenomena that exist beyond Earth's atmosphere, including factors like microgravity, radiation, and vacuum. Understanding this environment is crucial for space exploration, satellite operation, and studying the effects on human health during extended space travel.
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A spacewalk, also known as an extravehicular activity (EVA), is when an astronaut exits a spacecraft to perform work or experiments in outer space. It requires specialized suits to protect from the vacuum of space, extreme temperatures, and radiation, while allowing mobility and communication.
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