A spacesuit is a garment worn by astronauts during a spaceflight to keep them alive and comfortable in the harsh environment of space. Spacesuits are also worn by cosmonauts and taikonauts. They are often referred to as suits or space suits.
A space suit must provide oxygen for the astronaut to breathe, protection from the harsh conditions of space (including extreme temperatures and radiation), and a way to move and maneuver in the weightless environment of space.
A typical space suit consists of a pressure suit, which provides the astronaut with a supply of oxygen and protects them from the vacuum of space, and a mobility suit, which allows the astronaut to move and maneuver in space.
A space suit is not the same as an EVA suit, which is worn by astronauts during spacewalks. EVA suits are not designed to provide the same level of protection as a space suit and do not provide the astronaut with a supply of oxygen.
The first space suit was worn by Russian cosmonaut Yuri Gagarin during his historic spaceflight in 1961. American astronaut Alan Shepard also wore a space suit during his 1961 spaceflight.
Since then, space suits have undergone many changes and improvements. Today, space suits are more advanced and provide more protection and comfort than ever before.
Spacesuit travel is not possible without a space suit. A space suit is required to protect the astronaut from the harsh environment of space and to provide them with a supply of oxygen.