The astronauts were joined there Friday by 14-year-old Shane DiGiovanna, an aspiring aerospace engineer with a rare skin tissue disease. He is able to hear after a cochlear implant, with a device developed by a NASA scientist.
Before the announcement, Shane, who said Armstrong has always inspired him, quizzed the two astronauts about details of their missions. Lovell recounted the streams of oxygen that wrapped the Apollo 13 spacecraft "like a cocoon" after an oxygen tank explosion. The harrowing Apollo 13 flight was recounted in his book and depicted in the popular movie, in which Tom Hanks played Lovell.
After his space career, Armstrong returned to Ohio, teaching aerospace engineering at the University of Cincinnati and generally avoiding public view for most of the rest of his life.
Armstrong married Carol Knight in 1999. He had two sons from a previous marriage.
In announcing his death, Armstrong's family requested that when people "see the moon smiling down at you, think of Neil Armstrong and give him a wink."
Contact Dan Sewell at http://www.twitter.com/dansewell