The $40m Mission to Put a Cross on the Moon

Humans have carried religion into space since before the first moon landing. As we reported here, Buzz Aldrin secretly gave himself communion in the lunar module hours before Neil Armstrong took his famous first steps, and Catholic astronauts received the Eucharist aboard the Space Shuttle Endeavor in 1994. Catholic activist and cryptocurrency enthusiast Justin Park wants to take that history further, by leaving something behind.

His nonprofit, the Cross on the Moon Coalition, is trying to raise the money to land a physical cross on the lunar surface, an offering he describes as consecrating the heavens themselves.

Who Is Trying to Send a Cross to the Moon?

Park is a Catholic computer scientist from Dubuque, Iowa, who studied aerospace management at the International Space University and later worked stints at NASA Ames and NASA headquarters. He founded the coalition in 2024 after a dream in which his late mother, who died of cancer when he was a teenager, appeared to him as an angel.

The mission, dubbed HOPE-1, calls for a robotic cross that would unfold atop a lunar lander and livestream itself back to Earth. Getting there is the hard part: landing a single kilogram of payload on the moon costs several hundred thousand dollars, and Park originally priced the full mission near $40 million.

The coalition has raised only a small fraction of that so far, much of it derived from Park's own bitcoin earnings, and he has floated shrinking the cross to a single foot, or swapping it for something lighter still, a communion wafer.

Is It Even Legal to Put a Cross on the Moon?

In one sense, yes. The 1967 Outer Space Treaty, ratified by more than 110 countries including the United States, bars any nation from claiming sovereignty over the moon through occupation, use, or any other means. It says nothing about leaving objects behind.

Apollo astronauts left flags, mission patches, and memorial markers on the lunar surface decades ago without triggering a treaty violation, because none of it came bundled with a claim of ownership.

Religious objects specifically have already made the trip. A hundred microfilm Bibles rode down with Apollo 14 in 1971, carried by astronaut Edgar Mitchell for a NASA prayer group called the Apollo Prayer League. Later that year, Apollo 15's David Scott left a full paper Bible resting on his lunar rover's dashboard, where NASA believes it likely remains today.

What is less settled is what happens once a mission looks less like a personal keepsake and more like an organized, funded campaign to physically mark a piece of the moon for one faith. The treaty's ban on appropriation was written with nations in mind, and legal scholars still disagree about how far it reaches when a private coalition is doing the planting.

There is also, by design, no court or regulator up there to settle the question. Space law relies almost entirely on countries policing their own citizens and companies.

That is where the U.S. government still has a foot in the door. Any American launch needs federal authorization and ongoing oversight under the treaty, which means the coalition's mission would ultimately need a green light from federal regulators before a rocket ever left the pad. Whether that counts as a government endorsement of a religious symbol, or just routine paperwork for a satellite launch, is its own church-state question tucked inside the bigger one.

Why Is This Getting Attention Now?

The coalition's ambitions have drawn new notice because of who it runs alongside. It appears on the roster of Freedom 250, a Trump-aligned network of Christian organizers behind events like this month's Great American State Fair on the National Mall, and Park has said the coalition is "aligned with Trump's efforts to bring more prayer to America."

He has volunteered at Freedom 250 events himself. The group's hope for a wealthy patron even has a name attached: Park has said he would like to recruit Elon Musk as both funder and convert, joking the world would be better off if Musk found faith and became an evangelist too.

Is This Evangelism or Overreach?

Supporters see something moving in the attempt. Fellow Catholics and Christians have told reporters they understand what the cross represents and want to see the project through, and Park frames the mission as a monument built with the same tools used to explore the cosmos. "God is leading us into space," he told the San Francisco Standard.

Others are less convinced, and not only within the space industry, where Park has said reception has been cooler. Advocates for church-state separation see something familiar in the mission's Freedom 250 ties: a favored faith reaching for public symbolism with an administration's blessing, this time past the atmosphere entirely.

The moon, like a courthouse lawn or the National Mall, belongs to no single nation or creed. Landing a cross there, even a small one, raises the same question a monument on Earth would: whose faith gets to claim shared ground, and what does that mean for everyone else who calls that ground theirs too?

What Does This Say About Faith in Public Life Right Now?

The moon cross is a strange new entry in a familiar argument. ULC readers have already watched this administration's allies test the line between church and state here on Earth, and it is a pattern worth following whether or not Park ever gets his cross off the ground.

It also is not the first time a tech billionaire has been asked to bankroll an unconventional Catholic project. Peter Thiel found himself fielding uncomfortable questions from the Vatican after funding a very different kind of theological spectacle. For anyone curious how the moon has already carried religious meaning, Buzz Aldrin's lunar communion is a good place to start.

Should any single faith be allowed to plant a permanent religious symbol on a body that belongs to no nation and no creed? And if a cross on the moon crosses the line, where exactly does that line sit?