national aeronautics and space administration: an independent agency of the United States government responsible for aviation and spaceflight
independent agency: an agency of the United States government that is created by an act of Congress and is independent of the executive departments
hypogonadism: incompetence of the gonads (especially in the male with low testosterone); results in deficient development of secondary sex characteristics and (in prepubertal males) a body with long legs and a short trunk