50th anniv. of Apollo 11 moon landing marked in Washington D.C., U.S.

A visitor poses for photos with the spacesuit worn by astronaut Neil Armstrong during a late-night celebration commemorating the 50th anniversary of the Apollo 11 moon landing at the Smithsonian National Air and Space Museum, in Washington D.C., the United States, on July 21, 2019. (Xinhua/Ting Shen)