[WILL THEY WEEP IN THE SPACE SHIP?].
D006801:Humans; D007765:Lacrimal Apparatus; D010827:Physiology; D012767:Ships; D013026:Space Flight; D013666:Tears; D014893:Weightlessness
LACRIMAL APPARATUS; PHYSIOLOGY; SPACE FLIGHT; TEARS; WEIGHTLESSNESS
PLEURERONT-ILS EN ASTRONEF?