The U.S. Naval Academy once abandoned the teaching of traditional celestial navigation due to the convenience of GPS. However, as the vulnerabilities of GPS have become apparent, the academy has renewed its emphasis on traditional navigation. While the North Star is a reliable celestial navigation reference, adverse weather conditions like cloudy skies can hinder observations. To address this, Lockheed Martin engineer Michael DiMario and his team have developed quantum sensors. These sensors utilize synthetic diamonds and lasers to measure the amount of light emitted by the diamond under different magnetic fields, enabling navigation. Quantum sensors do not rely on satellite signals, making them more secure.
