Snoopy cap

{{Short description|Part of American space suits}}

File:Armstrong-Spencom01.jpg wearing a Snoopy cap|alt=Neil Armstrong wearing a Snoopy cap]]

A Snoopy cap, or communication cap, is a part of a space suit worn by American astronauts on the head and incorporating an audio headset for communication.{{cite web|url=https://www.nasa.gov/audience/foreducators/spacesuits/home/clickable_suit_nf.html|title=Learn About Spacesuits|date=November 13, 2008|publisher=NASA|accessdate=15 March 2017|archive-date=25 December 2018|archive-url=https://web.archive.org/web/20181225233404/https://www.nasa.gov/audience/foreducators/spacesuits/home/clickable_suit_nf.html|url-status=dead}}

The cap is nicknamed after the Peanuts character, whom its black and white paneling resembled.{{cite web|url=https://airandspace.si.edu/exhibitions/outside-the-spacecraft/online/image-detail.cfm?id=9650|title=Armstrong's Apollo 11 "Snoopy Cap"|work=National Air and Space Museum|publisher=Smithsonian Institution|accessdate=15 March 2017}}

Its NASA designation is Communications Carrier Assembly.{{cite web|url=https://www.nasa.gov/topics/moonmars/features/hatsman.html|title=NASA - Communicating in Space|date=August 26, 2010|publisher=NASA|accessdate=10 April 2017}} The "Snoopy cap" includes two earphones and two microphones, to tolerate failure of a single unit.{{cite book|last1=Thomas|first1=Kenneth S|last2=McMann|first2=Harold J|title=U.S. Spacesuits|url=https://books.google.com/books?id=Qlo_kJwtyZoC&pg=PA47|year=2011|publisher=Springer Praxis Books|isbn=978-1-4419-9566-7|page=47}}