Portal 2, Does Chell DIE?

The endings of the Portal games are iconic and not just because of the songs. Portal 2's portal to space sticks in my mind. How did Chell survive being flung out into space? That seems impossible! Loyal Theorists, I need answers and I will not stop until I get them! Get into your space suits as we find out what it's really like to die in space and if Chell should be DEAD!