“You have arrived at your destination.” This phrase, delivered with robotic cadence, is familiar to anyone who uses satellite navigation systems to guide them on sightseeing strolls, cross-country road trips, and all manner of journeys from point A to point B.
But what if your destination is literally out of this world? Could something like the Global Positioning Service (GPS), the most well-known satellite navigation system, be extended to globes that are not Earth?
The answer is not only “yes,” but “soon,” according to space agencies involved in a new push to establish a GPS-like constellation around the moon. NASA and its partners in Europe and Japan are developing lunar satnav