Senators Gary Peters (D-Mich.) and Ted Cruz (R-Tex.) have introduced a bill — the One Small Step to Protect Human Heritage in Space Act — that seeks to preserve and protect the historic Apollo 11 landing site.

The bill notes that the lunar landing sites of the Apollo 11 spacecraft, the robotic spacecraft that preceded the Apollo 11 mission , and the piloted and robotic spacecraft that followed "are of outstanding universal value to humanity."

The Act explains that such landing sites: are the first archaeological locales with human activity that are not on Earth; provide evidence of the first achievements of humankind in the realm of space travel and exploration; and contain artifacts and other evidence of human exploration activities that remain a potential source of cultural, historical, archaeological, anthropological, scientific and engineering knowledge.

"As commercial enterprises and more countries acquire the ability to land on the moon ," the bill notes, "it is necessary to ensure the recognition and protection of the Apollo 11 landing site and other historic landing sites together with all the human effort and innovation the sites represent."

Related: Apollo 11 at 50: A Complete Guide to the Historic Moon Landing Mission

Common human heritage

"We were honored to work with Senator Peters' office on this legislation," said Michelle Hanlon, co-founder of For All Moonkind , a group that seeks to protect each of the six human lunar landing sites, as well as other space locales, as part of our common human heritage.

"When we first met in March, it was clear that the Senator and his staff share our passion for the preservation of human history in space," Hanlon told Inside Outer Space. "They knew how important it was to get it right, and they recognized the need to develop a bill that would not violate international law by claiming any sort of possession or ownership of the historic lunar landing sites."

(Image credit: For All Moonkind)

Sustainable exploration

The bill is indeed a small step, Hanlon adds, but an incredibly significant one.

"Senator Peters and Senator Cruz are asking the U.S. to take the lead in assuring that we explore space sustainably with respect for history, Hanlon said. "We hope that the entire Senate will agree that it's time to take this one small step and help nudge an important international conversation on protection of human heritage in space."

The bill was introduced on May 23. You can read it here .