Extravehicular Activities (EVAs) refer to tasks performed by astronauts outside their spacecraft while in space. These activities are essential for various purposes, including repairs, maintenance, and scientific experiments. EVAs allow astronauts to conduct research in a microgravity environment and to test new technologies. During an EVA, astronauts wear specialized suits known as space suits to protect them from the harsh conditions of space, such as extreme temperatures and radiation. EVAs are carefully planned and executed, often requiring extensive training and preparation to ensure the safety and success of the mission.