Neutron Tide

"Neutron Tide" is a short story by British writer Arthur C. Clarke, first published in 1970 in Galaxy Science Fiction. It is among his shortest pieces of writing, consisting solely of a 2-page, detailed description of a futuristic scenario in order to use a pun as a punch-line, a play on the title of "The Star-Spangled Banner", the United States' national anthem. The story was reprinted later in the 1978 Starlord summer special.