This space mission could reshape space navigation technology as quantum sensing steps closer to real-world global applications.
SBQuantum has reached a major milestone by successfully launching its quantum diamond magnetometer into space on March 29 as part of the final phase of the MagQuest Challenge. This competition, led by the U.S. National Geospatial-Intelligence Agency (NGA), aims to advance technologies capable of monitoring Earth’s magnetic field and improving the accuracy of the World Magnetic Model (WMM), which is essential for global navigation.
The WMM plays a critical role in everyday and strategic operations. It supports navigation systems used by over a billion smartphone users, guides commercial airline routes, and underpins military missions worldwide. However, the satellites currently responsible for collecting magnetic field data are nearing the end of their operational life. At the same time, Earth’s magnetic field is shifting more rapidly than before, increasing the need for continuous and precise monitoring.
SBQuantum’s innovation addresses these challenges with a compact, highly advanced sensor roughly the size of a quart of milk. Unlike traditional systems that are large, costly, and provide only periodic data, this quantum magnetometer delivers continuous, high-resolution measurements. Built to operate in extreme space conditions, it represents a significant leap forward in magnetic sensing technology.
Company founder David Roy-Guay described reaching this phase as a defining achievement, emphasizing that the technology has now proven its capability under the most demanding conditions. He highlighted its potential to transform navigation across land, air, and sea, while also enabling broader applications such as defense, resource exploration, and public safety.
One of the key advantages of magnetic navigation is its reliability in environments where GPS signals may be unavailable or disrupted, such as during electronic warfare or in remote regions. This makes it especially valuable for defense and aerospace sectors seeking resilient alternatives to satellite-based navigation.
