Precise underwater navigation is critical for autonomous and remotely operated deep-sea vehicles, yet variations in seawater sound speed often introduce systematic acoustic positioning errors.

The experimental sensor could be groundbreaking. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A US military space-plane, the X-37B orbital ...

Traditional inertial navigation systems calculate position by continuously integrating motion data. Over time, even microscopic measurement errors accumulate, gradually pushing position estimates off ...

The rise of GPS vulnerability is putting more resilient, atom-based navigational tools on the map. In late September, a Spanish military plane carrying the country’s defense minister to a base in ...