Spacesuits, also known as Extravehicular Mobility Units (EMUs), are essential pieces of equipment used by astronauts during spacewalks and other extravehicular activities (EVAs). These suits are designed to provide the necessary protection and support for humans to work safely in the harsh environment of outer space. Some synonyms for spacesuits include pressure suits, EVA suits, spacewalk suits, astronaut suits, and zero-gravity suits. These suits enable astronauts to carry out various tasks outside the spacecraft, such as repairing equipment, conducting experiments, and testing materials. The development of these suits has been an important milestone in human space exploration, as they have allowed humans to operate beyond the confines of their spacecrafts and explore the vastness of space.