Correction! Repeat the question....
The dead body of U.S Astronaut Neil Armstrong, who is the First Man landed on the Moon, will be buried at sea and at the same time a prayer will be performed at National Cathedral, Washington.... News Report.
Why his body is going to be buried at Sea?
It was Neil Armstrong's wish that his body should be buried in the sea. May be his wish for a burial at sea was because of his Naval career which started in 1947. He was a traditional Navy man till the end. Burial at sea is not a rare practice. The US Navy performs an average of approximately 900 burials at sea every year.