Astronaut gear, also known as a space suit, is designed to protect astronauts while they work in the harsh environment of space. The suit provides life support, including oxygen for breathing and temperature control to keep the astronaut comfortable. It also shields them from harmful radiation and micrometeoroids. In addition to the suit, astronauts wear a helmet with a visor to protect their eyes from bright sunlight and a communication system to stay in contact with their team. The gear is essential for missions conducted by organizations like NASA and is crucial for tasks such as spacewalks and repairs on the International Space Station.