All international visitors to the U.S. must sign a customs declaration form and declare any foreign items they’re bringing into our borders.
The astronauts on Apollo 11 were no exception.
After splashing down in the Pacific, Neil Armstrong, Buzz Aldrin and Michael Collins signed a joint document declaring “moon rocks, moon dust and other lunar samples.”
Check it out (via Space.com):
Business Insider Emails & Alerts
Site highlights each day to your inbox.