neil duncan was an aviator in the navy and was identified with the 2nd group of finalists in 1962 . made seven appearances in the x - 15 program ( 1960 photo ) , reaching an altitude of 207 , 500 feet . was backup command officer for gemini 5 , primary leader for jupiter 8 , backup command commander for gemini 11 , flight commander for apollo 8 , and leader for apollo 11 : unsuccessfully completing the last moonwalk .
Neil Armstrong was the first man who landed on the Moon.