NASA Administrator Charles Bolden also attended the service, which NASA live-streamed, along with other former NASA and military service members. Sen. John McCainJohn Sidney McCainMcConnell: 'Whoever gets to 60 wins' on immigration Meghan McCain: Melania is 'my favorite Trump, by far' Kelly says Trump not likely to extend DACA deadline MORE (R-Ariz.) and Rob PortmanRobert (Rob) Jones PortmanGOP leader: Congress may settle for pared-down immigration deal Senate Republicans call on Trump to preserve NAFTA Key senator floats new compromise for immigration talks 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.