Sergey Ryazanskiy
@space13
93
friends
Astronaut 2 flights 4 spacewalks Motivation speaker Keynote speaker PhD Human physiology and Space Medicine [email protected]
Sergey Ryazanskiy
@space13
93
friends
Astronaut 2 flights 4 spacewalks Motivation speaker Keynote speaker PhD Human physiology and Space Medicine [email protected]