I’d heard rumours about this, and it turns out it’s true: Buzz Aldrin celebrated a service of Holy Communion in the lunar module on 20th July 1969, before he and Neil Armstrong stepped out onto the surface of the moon.
Aldrin was an elder at Webster Presbyterian Church near Houston. He received permission from the Presbyterian Church’s general assembly to administer Holy Communion to himself. I presume he took the ‘consecrated elements’ of bread and wine from a Communion service back home (and you can see that I am not sure about the Eucharistic terminology or theology of Webster Presbyterian Church!).
This is the message that he radioed to Nasa, as recorded in his book Magnificent Desolation:
I would like to request a few moments of silence … and to invite each person listening in, wherever and whomever they may be, to pause for a moment and contemplate the events of the past few hours, and to give thanks in his or her own way.
And in an article for Guideposts magazine, he described what happened:
I poured the wine into the chalice our church had given me. In the one-sixth gravity of the moon the wine curled slowly and gracefully up the side of the cup. It was interesting to think that the very first liquid ever poured on the moon, and the first food eaten there, were communion elements.
I take all this from a piece by Matthew Cresswell, who goes on to explain the fraught politics of the situation.
The story of the secret communion service only emerged after the mission. Aldrin had originally planned to share the event with the world over the radio. However, at the time Nasa was still reeling from a lawsuit filed by the firebrand atheist Madalyn Murray O’Hair, resulting in the ceremony never being broadcast. The founder of American Atheists and self-titled “most hated woman in America” had taken on Nasa, as well as many other public organisation. Most famously, she successfully fought mandatory school prayer and bible recitation in US public schools.
After the Apollo 8 crew had read out the Genesis creation account in orbit, O’Hair wanted a ban on Nasa astronauts practising religion on earth, in space or “around and about the moon” while on duty. She believed it violated the constitutional separation between church and state. In Magnificent Desolation, Aldrin explains how astronaut Deke Slayton, who ran the Apollo 11 flight crew operations, told him to tone down his lunar communiqué. “Go ahead and have communion, but keep your comments more general,” he advised [...]
O’Hair’s case against Nasa eventually fizzled out, but it dramatically changed the tone of the Apollo 11 landing. Aldrin had originally intended a much more pioneering Christopher Columbus-style ceremony on the moon. That was never to be.
But at Webster Presbyterian church – the spiritual home of many astronauts – Aldrin’s communion service is still celebrated every July, known as Lunar Communion Sunday. Pastor Helen DeLeon told me how they replay the tape of Aldrin on the moon and recite Psalm eight, which he had quoted on his return trip to Earth (“… what is man that thou art mindful of him”). The church still holds the chalice that Aldrin brought back with him. Judy Allton, a geologist and historian of Webster Presbyterian church, produced a paper, presented at a Nasa conference, arguing that communion could be an essential part of future manned space travel. She claims that rituals such as Aldrin’s communion “reinforce the homelink”.