While NASA does not have any limits on how previous its astronauts should be to visit space, it does require potential candidates to have a bachelor’s diploma in a STEM-related subject reminiscent of biology, engineering, or laptop science. To stay the dream and be part of the ranks of space travelers, astronauts need to overcome enormous obstacles. Would-be astronauts start by swimming three full-lengths of a 25-meter 82-foot pool without stopping. Those who
