I have a video of a launch (don't remember which one) with a camera inside the flight deck at the middle, aimed downwards particularly at Mission Specialists 1 and 2....We can't see their face (all dark).
At the moment of liftoff (the most dangerous moment of the flight), we see simultaneously on their dark face a brilliant white crescent forming itself and remaining like that for a long time.....A Huge Smile with white teeth!!!!

The astronauts have been waiting this for such a long time, they can finally achieve their dream!
They don't have our concerns at all, but another one: if it fails, it won't be because of them.