NASA Administrator Charles Bolden also attended the service, which NASA live-streamed, along with other former NASA and military service members. Sen. John McCainJohn McCainRepublicans tie Trump's Defense pick to funding fight Lawmakers haggle over funding bill as shutdown nears Markos Moulitsas: Kill the filibuster MORE (R-Ariz.) and Rob PortmanRob PortmanGOP debates going big on tax reform Who is Tim Ryan? A closer look at Pelosi’s challenger Battle for the Senate: Top of ticket dominates MORE (R-Ohio) were also there, and tweeted their respects.

Armstrong, the first man on the moon, died Aug. 25. He was 82.

He will be buried at sea by the Navy on Friday.