Michael Collins has received the least amount of attention of the three Apollo 11 astronauts because he didn’t land on the Moon like Neil Armstrong and Buzz Aldrin did- he was up in the command module circling the Moon while Neil and Buzz were on the Moon. Still living at 88- an article on Collins from Esquire- attached below.

https://www.esquire.com/news-politics/a28400600/michael-collins-today-apollo-11-astronaut-moon-landing/?utm_source=pocket-newtab