Like most people having to undertake a long journey for work, Buzz Aldrin was asked to file an expenses claim when he returned to the office.

Except his 1969 trip was slightly out of the ordinary: he travelled from Houston to Cape Kennedy before flying into space, becoming the second man - behind his colleague Neil Armstrong - to set foot on the Moon, then returned home via the Pacific Ocean and Hawaii.

The 85-year-old former astronaut recently shared a copy of the $33.31 expenses form he filed after returning to Earth as well as the official travel voucher and customs form he needed for bringing back a pieces of lunar rock and lunar dust.