PSA: Sticking your arm into the vacuum of space would really suck

If you’ve watched any sci-fi shows or read any books about space, then you probably know that human bodies and vacuums don’t mix well. You’ve probably heard that all sorts of bad things happen without atmospheric pressure constantly weighing down on your flesh, not the least of which is the fact that your body will rapidly expand to about twice its size, as your skin stretched like a balloon. Have you ever wondered what that might actually look like…. in real life? YouT