Flats (= not thick nor chubby)

Spaceman, maybe ALPIA,
? 

These 3 either suffered greatly from G-forces when going to orbit, or decided to join the Martian branch of WeightWatchers. I know spacefood is not great, but come on ! Look at the sour face of the middle spaceman... Feed me ! Feed me please  ! If you know more about these please send information.

Spaceman, maybe ALPIA,
? 

Spaceman, maybe ALPIA,
?