The 40-Minute Silence: When Artemis Crew Disconnects from Earth

No one in history has traveled farther from home than the Artemis astronauts. As the Earth diminishes into a tiny point in their rear-view mirrors, they have relied on a steady stream of calm instructions from mission control in Houston, Texas. This verbal tether has provided a comforting sense of connection to home. However, that link is soon to be severed.

At approximately 23:47 BST (18:47 EDT) on Monday, as the spacecraft passes behind the Moon, the Moon itself will block the radio and laser signals facilitating communication between the crew and Earth. For roughly 40 minutes, the four astronauts will be completely isolated, left to their own thoughts and emotions while traversing the dark void of space. It promises to be a profound moment of silence and solitude.

Victor Glover, the Artemis pilot, expressed a wish for the global audience to utilize this interval. "When we're behind the Moon, out of contact with everybody, let's take that as an opportunity," Glover told BBC News prior to the launch. "Let's pray, hope, send your good thoughts and feelings that we get back in contact with the crew."

This phenomenon is not new to lunar exploration. More than five decades ago, Apollo astronauts endured similar signal losses. The experience was perhaps most acute for Michael Collins of Apollo 11. In 1969, while Neil Armstrong and Buzz Aldrin walked on the lunar surface, Collins orbited alone in the command module. As his vehicle passed behind the far side, communication with both the surface walkers and mission control ceased for 48 minutes.

In his 1974 memoir, Carrying the Fire, Collins described feeling "truly alone" and "isolated from any known life," yet he noted that he experienced no fear or loneliness. In subsequent interviews, he reflected on the tranquility of the radio silence, viewing it as a welcome respite from the constant demands of mission control.

Back on Earth, the communication blackout creates tension for ground teams responsible for tracking the spacecraft. At the Goonhilly Earth Station in Cornwall, southwest England, a massive antenna has been meticulously monitoring signals from the Orion capsule, determining its precise trajectory and relaying data to NASA headquarters.

Matt Cosby, Goonhilly’s chief technology officer, highlighted the significance of this mission: "This is the first time we're tracking a spacecraft with humans on it." He admitted that the team would feel "slightly nervous" as the craft disappears behind the Moon, but that excitement would return once the signal is regained, confirming the crew’s safety.

However, NASA and other international space agencies aim to eliminate these communication gaps in the future. Such continuous connectivity is crucial for building a sustainable Moon base and expanding exploration efforts. "For a sustainable presence on the Moon, you need the full comms - you need the full 24 hours a day, even on the far side, because the far side will want to be explored as well," Cosby explained.

Initiatives like the European Space Agency’s Moonlight program are already planning to deploy a satellite network around the Moon to ensure reliable, continuous communication coverage.

For the Artemis crew, the period of silence offers a unique chance to focus entirely on the lunar environment. During the blackout, they will dedicate their time to observing the Moon—capturing images, analyzing its geology, and simply admiring its beauty. When the spacecraft emerges from the Moon’s shadow and contact is restored, the world will collectively exhale in relief, allowing the historic astronauts to share their extraordinary perspectives with everyone on Earth.

Source: BBC News Generated at: 2026-04-05 23:02:53 UTC