MIT Lincoln Laboratory's Precision Photon Synchronization System represents a significant step forward in quantum networking. It offers a practical and efficient solution for enabling quantum communication across vast distances. By ensuring that entangled photons can arrive at their destinations with extreme precision, the system helps overcome one of the significant challenges in establishing global quantum networks.

The ability to synchronize photons to subpicosecond precision opens up new possibilities for quantum communication. The timing of photon interactions is critical for maintaining entanglement and ensuring reliable data transmission.

Rather than placing complex entanglement sources in space, which would be difficult and costly to maintain, the system leverages ground-based sources. This approach simplifies infrastructure and offers flexibility for upgrading technologies as they evolve, making it more sustainable and adaptable.

The system could establish interconnected quantum networks at a metropolitan scale, a crucial step toward realizing a global quantum internet. These networks could revolutionize communications, offering unprecedented security and computational power.

NASA could equip satellites with quantum sensors for more precise navigation for space vehicles. Quantum sensors can provide unparalleled accuracy in measurements, which could be vital for the operation of future space missions, including those involving deep space exploration.

Overall, the development of this system marks a significant milestone in both the advancement of quantum networking and the potential for future space-based quantum technologies.