Armstrong died on Aug. 25. He was 82.
On July 20, 1969, Armstrong, who led the Apollo 11 mission, became the first human to walk on the moon.
Armstrong, who lived in the Cincinnati, Ohio area, is survived by his two sons, a stepson and a stepdaughter, 10 grandchildren, a brother and a sister, NASA said.
(Reporting By Kim Palmer; Editing by Greg McCune and Sandra Maler)