The "backpack" opens like a fridge door, allowing the spacewalker to climb inside. Nasa's Extravehicular Mobility Suit (EMU) was introduced in 1981 and is the other suit used at the space station.
Astronomers have used the NASA/ESA James Webb Space Telescope (JWST) to observe the ‘inside-out’ growth of a galaxy in the early universe, only 700 million years after the Big Bang.