Preserving remnants of human culture on the moon | Science News for Students

Preserving remnants of human culture on the moon

Artifacts left by lunar missions have value to science and, potentially, to all of humanity
Oct 3, 2019 — 6:40 am EST
Aldrin at Tranquility base on the moon

Apollo 11 Astronaut Buzz Aldrin is seen setting up scientific instruments on the moon. They include a seismometer to measure moonquakes and a mirror array to measure the distance between the Earth and moon. The lunar lander and an American flag can be seen in the background. Those items also were left on the moon.


A half-century ago, NASA’s historic Apollo program landed spacecraft — and humans — on the moon. This mission did not just touch the moon, it changed the moon in subtle ways. Among such changes, it left behind waste, debris and scientific instruments. People might not have thought much about it at the time, but these cast-offs are signs of human civilization and American culture.

Scientists today also hope those remnants can teach us more about how humans might fare on the moon. Archaeologist Beth O’Leary of New Mexico State University in Las Cruces is among those who also want to preserve those items that Apollo left behind.

“Space is not a vacuum. We carry our culture into it,” explains O’Leary. The remnants of Apollo sites represent a singular time in human history. Astronaut memorials and messages of peace are obvious pieces of heritage. But “even the scientific stuff has cultural importance,” she notes. It took some 400,000 Americans working at more than 20,000 companies and universities to get astronauts to the moon. That scale of teamwork was “a cultural act,” O’Leary says. It also represents a major scientific and engineering feat.

But legally protecting Apollo items at lunar sites isn’t easy. The United States can’t establish an Apollo National Park on the moon. As fun as that sounds, it would violate a 1967 law. Called the Outer Space Treaty, it states that no nation can claim control over the moon’s surface.

For now, NASA has created guidelines on how to avoid ruining Apollo artifacts. These should come in handy for the many countries and companies that want to go to the moon.

One guideline sets the minimum distance a future spacecraft should land from Apollo sites. It should keep rocket exhaust from erasing Neil Armstrong’s first boot print, for instance. Such rules are not legally binding, Metzger says. But “no company,” he says, wants “to be known as the company that ruined one of the Apollo sites.”

Michelle Hanlon works at the University of Mississippi in Oxford. There, she specializes in space law. She has her sights on another way to protect Apollo sites. Her nonprofit group, For All Moonkind, wants the United Nations to protect relics on the moon. But she suspects it may take decades to reach a deal.

By then, tourists and others may be walking the moon. This is fueling concerns about a risk of looting. In 2015, a lunar sample bag used by Neil Armstrong was mistakenly sold at a government auction. The buyer paid $995. Later that buyer resold it for $1.8 million! Other space-age stuff has sold for similarly astronomical prices.

Hanlon questions NASA’s ability to keep track of all Apollo artifacts. Especially once people begin making regular round trips to the moon. “You can imagine [looters] going up and just grabbing artifacts and bringing them back to sell,” she says.

It’s not just Apollo artifacts Hanlon wants protected. Earlier this year, China let the first rover loose on the farside of the moon. And Israel and India each crash-landed their first spacecraft on the lunar surface. Says Hanlon, these milestones in humanity’s quest to touch the stars also deserve to be protected.

Power Words

(more about Power Words)

artifact     Some human-made object (such as a pot or brick) that can be used as one gauge of a community’s culture or history. (in statistics or experiments) Something measured or observed that is not naturally a part of some system. It was instead introduced accidentally as a result of how the measurement or study was performed.

astronaut     Someone trained to travel into space for research and exploration.

culture      (n. in social science) The sum total of typical behaviors and social practices of a related group of people (such as a tribe or nation). Their culture includes their beliefs, values and the symbols that they accept and/or use. Culture is passed on from generation to generation through learning. Scientists once thought culture to be exclusive to humans. Now they recognize some other animals show signs of culture as well, including dolphins and primates.

debris     Scattered fragments, typically of trash or of something that has been destroyed. Space debris, for instance, includes the wreckage of defunct satellites and spacecraft.

engineering     The field of research that uses math and science to solve practical problems.

exhaust     (in engineering) The gases and fine particles emitted — often at high speed and/or pressure — by combustion (burning) or by the heating of air. Exhaust gases are usually a form of waste.

lunar     Of or relating to Earth’s moon.

milestone     An important step on the road to stated goal or achievement. The term gets its name from the stone markers that communities used to erect along the side of the road to inform travelers how far they still had to go (in miles) before reaching a town.

moon     The natural satellite of any planet.

NASA     Short for the National Aeronautics and Space Administration. Created in 1958, this U.S. agency has become a leader in space research and in stimulating public interest in space exploration. It was through NASA that the United States sent people into orbit and ultimately to the moon. It also has sent research craft to study planets and other celestial objects in our solar system.

relic     Something that is a leftover from an earlier time. The term is usually applied to things that had been fashioned by people.

remnant     Something that is leftover — from another piece of something, from another time or even some features from an earlier species.

rocket     Something propelled into the air or through space, sometimes as a weapon of war. A rocket usually is lofted by the release of exhaust gases as some fuel burns. (v.) Something that flings into space at high speed as if fueled by combustion.

subtle     Some feature that may be important, but can be hard to see or describe. For instance, the first cellular changes that signal the start of a cancer may be visible but subtle — small and hard to distinguish from nearby healthy tissues.

treaty     A formal agreement that two or more sovereign powers (usually countries or tribal nations) have adopted, giving its provisions the force of law.

vacuum     Space with little or no matter in it. Laboratories or manufacturing plants may use vacuum equipment to pump out air, creating an area known as a vacuum chamber.

waste     Any materials that are left over from biological or other systems that have no value, so they can be disposed of as trash or recycled for some new use.