Space is an amazing but scary place. Without a space suit, an astronaut would lose consciousness in 15 seconds and die in minutes. NASA suits protect against extreme temperatures. The first spacewalk was in 1965, and the longest was 8 hours and 56 minutes in 2001.
There is no doubt that going to space would be an amazing experience. But that final frontier can also be quite scary in ways that we on Earth needn’t fear. For example, if an astronaut were to somehow drift through space without wearing a space suit, he would only have about 15 seconds before losing consciousness from lack of oxygen. The astronaut would be dead within a couple of minutes unless he could be quickly rescued and repressurized inside the spacecraft. However, survival would only be possible if the astronaut remembered to expel the air from his lungs before experiencing the pressure drop in space. If he instead chooses to take a deep breath and tries to hold it, the air in his lungs will expand rapidly, tearing apart lung tissue and forcing air bubbles into the bloodstream. Kind of takes your breath away, doesn’t it?
give me some space:
NASA space suits protect against cold down to -250 degrees Fahrenheit (-157°C) and sunlight which can heat up to 250 degrees Fahrenheit (121°C)
The first person to walk in space was Russian cosmonaut Alexei Leonov, who conducted his 12-minute extravehicular activity (EVA) on March 18, 1965.
In 2001, American astronauts Susan Helms and James Voss set the record for the longest spacewalk, at 8 hours and 56 minutes.
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