Nokia is poised to make history by deploying the first-ever 4G cellular network on the Moon, a bold venture that will be tested later this month during the Intuitive Machines IM-2 lunar mission. This mission, launched by the private company behind the first commercial lander to touch the Moon, will see a lander, rover, and hopper explore a site near the lunar south pole. Alongside these scientific instruments, the mission will carry a groundbreaking technological first: a fully functional 4G cellular network.
This ambitious project marks a significant shift from the traditional point-to-point radio communications that have been the standard in space for decades. Historically, missions like the Apollo program relied on direct radio communications between a single spacecraft, rover, or lander and Earth. These systems used ultra-high frequency (UHF) and very high frequency (VHF) technologies, which were sufficient for low data throughput and limited communication needs. However, as space exploration advances, particularly with NASA’s Artemis program aiming to return astronauts to the Moon in 2028, the need for a more robust and scalable communication network has become evident.
Thierry Klein, president of Nokia Bell Labs Solutions Research, which was contracted by NASA to design the Moon’s cellular network, explained that the shift from point-to-point radio systems to a full cellular network would enhance data transfer speeds, extend communication ranges, and allow multiple devices to connect simultaneously. However, the challenge of adapting Earth-based cellular technology to the harsh conditions of space—including radiation, extreme temperatures, and violent vibrations during launch and landing—required innovative engineering.
In response, Nokia developed a radiation-hardened “network in a box” that includes all the necessary components for a cellular network except the antenna and power source. The box will be powered by the lander’s solar panels and will serve as both the base station and the cell tower. The antenna will be installed on the lander, forming the backbone of the lunar cellular network.
During the IM-2 mission, the 4G network will facilitate communication between the lander and the two vehicles that accompany it. This initial network will likely operate for just a few days before the spacecraft’s systems are rendered inoperable by the lunar night. Despite its limited duration, the mission will provide valuable data for future, more expansive lunar communication systems. Nokia envisions a future in which a more robust 4G or even 5G network will provide coverage for the planned Artemis habitat and beyond, possibly integrating cell communication into spacesuits for lunar astronauts.
However, this leap into lunar telecommunications has raised concerns within the scientific community. Radio telescopes, particularly those used for astronomical research, could face significant interference from the radio frequencies used for cellular communication. The National Radio Astronomy Observatory (NRAO) has voiced concerns, as LTE networks, including the frequencies chosen for this lunar deployment, overlap with bands reserved for radio astronomy. Such interference could disrupt crucial observations, especially when telescopes are pointing toward the Moon.
Chris De Pree, deputy spectrum manager at NRAO, warned that communication satellites like Starlink already cause interference, and a full-scale cellular network on the Moon would exacerbate this issue. Moreover, using certain radio bands on the Moon could violate international radio regulations. To navigate this challenge, Nokia secured a waiver for the IM-2 mission, allowing it to operate within the designated LTE frequency bands. However, for a permanent deployment, Nokia will need to identify and transition to alternative frequency bands that align with international regulations.
Despite these regulatory hurdles, Nokia’s lunar network technology remains compatible with terrestrial 4G and 5G systems. As such, should anyone be lucky enough to bring their smartphone to the Moon (and have it survive the harsh lunar environment), it would theoretically connect to the lunar network, much like it would on Earth, provided they had the appropriate lunar SIM card. This prospect opens up exciting possibilities for the future of space exploration and communication.
As noted by MIT Technology Review, this groundbreaking mission represents not only a triumph of engineering but also a pivotal moment in the future of lunar infrastructure. With ambitions to build a permanent human presence on the Moon by the 2030s, a reliable, high-speed communication network is crucial for supporting a growing lunar economy and ensuring the success of extended missions.
The deployment of 4G on the Moon is just the beginning. In the coming decades, as humanity moves closer to establishing permanent settlements on the Moon and exploring Mars, communication technologies will be key to sustaining life and ensuring the success of interplanetary exploration. Nokia’s lunar 4G network is setting the stage for this exciting new era, paving the way for an interconnected future beyond Earth’s atmosphere.
