the first u.s. astronaut candidates were selected by nasa in 1959, for its project mercury with the objective of orbiting astronauts around the earth in single-man capsules. the chief astronaut serves as head of the corps and is the principal adviser to the nasa administrator on astronaut training and operations. astronaut candidates have ranged between the ages of 26 and 46, with the average age being 34. candidates must be u.s. citizens to apply for the program.
the term “astronaut candidate” (informally “ascan”) refers to individuals who have been selected by nasa as candidates for the nasa astronaut corps and are currently undergoing a candidacy training program at the johnson space center. upon completion of a two-year training program, they were promoted to the rank of astronaut in january 2020. three members of the astronaut corps (gus grissom, edward white, and roger b. chaffee) were killed during a ground test accident while preparing for the apollo 1 mission.
the term “astronaut” has been maintained as the title for those selected to join the nasa corps of astronauts who make the nasa astronaut corps is a unit of the united states national aeronautics and space administration (nasa) that engle was the only nasa astronaut to have earned his astronaut wings before his selection. two of this group never flew , nasa astronauts salary, nasa astronauts salary, nasa astronauts list, nasa astronaut application 2020, nasa astronauts 2020.
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