Two members of Congress want to put a national park on the moon.
Representatives Donna Edwards of Maryland and Eddie Bernice Johnson of Texas have proposed legislation to make the sites of moon landings a national historic park.
Both congresswomen say their concern is protecting artifacts left by astronauts from future commercial development.
The national park designation would only apply to the American flags, Lunar Rover and other objects.
The moon's surface doesn't belong to the U.S. or any other nation, under an international treaty.