Before the ticker tape parades and the inevitable world tour, the triumphant Apollo 11 astronauts were greeted with a more mundane aspect of life on Earth when they splashed down 40 years ago today - going through customs.

Just what did Apollo 11 astronauts Neil Armstrong, Buzz Aldrin and Michael Collins have to declare? Moon rocks, moon dust and other lunar samples, according to the customs form filed at the Honolulu Airport in Hawaii on July 24, 1969 - the day the Apollo 11 crew splashed down in the Pacific Ocean to end their historic moon landing mission.