The US military’s Boeing-built X-37B spaceplane has flown again for its eighth mission, this time carrying a quantum GPS alternative that could provide a resilient navigation system in the event of satellite failures. The uncrewed craft launched atop a SpaceX Falcon 9 and includes a Boeing integrated service module to increase payload capacity.
The mission is testing technology demonstrations from government partners, including laser communications and a quantum inertial sensor designed to support navigation when traditional GPS systems are unavailable. This tech uses atom interferometry, an ultra-precise way of measuring acceleration that can also be used to measure position.
China has expressed concerns about the X-37B’s capabilities, worrying it could disrupt its Beidou satnav system. The US military is also concerned about losing its own GPS satellites in modern warfare. This mission takes on significance as it tests a tech that could enable future spacecraft and aircraft to find their way even if traditional navigation systems fail.
The Pentagon has not disclosed the expected return date of the X-37B or the specific goals of this mission, but it is clear that this technology holds potential for enhancing the resilience of navigation systems in space.
Source: https://www.theregister.com/2025/08/25/x37b_quantum_navigation_payload