US Space Force's secretive X-37B space plane will test quantum alternative to GPS navigation

image via Space.com

August 20, 2025, 8:00 PM

• •The X-37B space plane's eighth mission will test a quantum inertial sensor, potentially revolutionizing navigation.
• •Quantum inertial sensors, using atom interferometry, offer high accuracy and resilience without external signals.
• •This technology could be critical in environments where GPS is unavailable or compromised, such as space and underwater.
• •The mission represents a leap from lab research to practical aerospace applications, with implications for both military and civilian spaceflight.

The X-37B space plane is set to launch on its eighth mission, carrying an experimental quantum inertial sensor designed to revolutionize navigation. This technology uses atom interferometry to provide highly accurate and resilient navigation, especially crucial in environments where GPS is unreliable or unavailable. Quantum sensors offer greater sensitivity and are less prone to drift than traditional systems, making them ideal for long-duration missions. The mission marks a significant step towards practical aerospace applications of quantum technology, with implications for both military and civilian spaceflight.

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