A Canadian scientist is calling for action to protect significant geological and historical features on the moon, Mars, and other planets.

Jack Matthews, of Memorial University of Newfoundland, says as nations and private companies increasingly explore and develop outer space, theresa国际传媒檚 a growing threat to extraterrestrial environments.

sa国际传媒淎 global agreement to protect the most important sites is needed before itsa国际传媒檚 too late,sa国际传媒� he said Tuesday in an interview from Oxford, England.

Matthews, a post-doctoral fellow in Memorialsa国际传媒檚 Department of Earth Sciences, and Sean McMahon of the U.K. Centre for Astrobiology have just published a paper on the topic.

sa国际传媒淭he solar system holds billions of yearssa国际传媒� worth of geological heritage,sa国际传媒� said McMahon. sa国际传媒淲e owe it to future generations not to squander their inheritance.sa国际传媒�

Matthews said that includes historical and cultural sites, including the Apollo 11 lunar landing site.

sa国际传媒淭here lies the first footprints ever made by a human on another celestial body. That footprint still exists there because there is no atmosphere on the moon, therefore there isnsa国际传媒檛 any wind. So that dusty footprint is still there, preserved on the surface of the moon.sa国际传媒�

Matthews said with a number of countries and private companies actively preparing to send humans beyond Earth, now is the time to have the discussion and debate.

SpaceX, a private American company founded by Elon Musk, has a goal to send its first cargo mission to Mars in 2022.

The Peoplesa国际传媒檚 Republic of China has initiated a manned spaceflight program, while the European Union, Japan, and India have also planned future crewed space missions.

The paper was released Tuesday in sa国际传媒淎cta Astronautica,sa国际传媒� a publication of the International Academy of Austronautics.

Matthews said their proposal wouldnsa国际传媒檛 stand in the way of exploration or resource development, but would protect places like Valles Marineris sa国际传媒� known as the Mars version of the Grand Canyon.

sa国际传媒淲e wish to conserve very specific, important sites, that represent something either cultural or historic or educational or scientific, or even just aesthetic. There are wonderful landscapes that we have seen in photographs from the Curiosity rover and other rovers, that if they were on Earth would no doubt be national parks,sa国际传媒� he said.

Itsa国际传媒檚 expected that explorers to other planets will need to mine or otherwise extract the resources needed to provide water and rocket fuel for the return home, for habitation, or to continue further into the solar system.

Matthews said just because we cansa国际传媒檛 go to those sites at the moment doesnsa国际传媒檛 make them less worthy of protection.

He said the countries of the world came together to protect Antarctica through the Antarctic Treaty, and the same could be done to protect sites in space, and he hopes their paper will start the discussion.

Matthews said he envisions a governing body could be within or parallel to the United Nations.

He said existing protocols used to protect geological heritage on Earth could be used on other planets in what hesa国际传媒檚 calling exogeoconservation.

Matthews said it could take years to produce an agreement, so discussion and debate needs to start now.

Kevin Bissett, The Canadian Press

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