Mark Armstrong, son of Neil Armstrong, speaks during a memorial service celebrating the life of his father, Friday, Aug. 31, 2012, at the Camargo Club in Cincinnati.

See photos from the National Cathedral's memorial service for Neil Armstrong on Sept. 13, 2012, to honor the first person to walk on the moon. Armstrong died on Aug. 25.

Neil Armstrong, the first man on the moon, was honored at a private memorial service today near his Cincinnati home. A public service was announced for Sept. 12 in Washington, D.C.

The last man to leave his bootprints on the moon paid tribute to the first man who laid foot there at a national memorial service for the late astronaut Neil Armstrong. Eugene Cernan, who followed ...

Armstrong, who died last month in Ohio at age 82, walked on the moon in July 1969. ... Neil Armstrong memorial held at National Cathedral. Updated: Sep. 13, 2012, 1:28 p.m.

A memorial tribute from the Smithsonian is seen at the entrance of a private memorial service celebrating the life of Neil Armstrong, Aug. 31, 2012, at the Camargo Club in Cincinnati.

If you're not among the lucky few people who will get to bid farewell to late astronaut Neil Armstrong in person Thursday (Sept. 13), you can still watch the proceedings live online. Armstrong ...

The nation will have a chance to say goodbye to the iconic astronaut in a public service that will be streamed on NASA's Web site, as well as the cathedral's site.

Neil Armstrong died August 25, 2012, 43 years after walking on the moon during the Apollo 11 mission. A year later, a stone and a tree have been dedicated to his memory.

See photos from the National Cathedral's memorial service for Neil Armstrong on Sept. 13, 2012, to honor the first person to walk on the moon. Armstrong died on Aug. 25.

The last man to leave his bootprints on the moon will pay tribute to the first man who laid foot there at a national memorial service for the late astronaut Neil Armstrong. IE 11 is not supported.

Captain Eugene A. Cernan spoke at the memorial service for Neil Armstrong at Washington National Cathedral, Washington, DC, September 13, 2012.