Some interesting news via NASA shared from high above the Earth… The ship-detection system being tested is based on the Automatic Identification System, or AIS, the marine equivalent of the air traffic control system. AIS allows port authorities and coast guards to track seagoing traffic, but the system relies on VHF radio signals with a horizontal range of just 40 nautical miles (74 km). This makes it useful within coastal zones and on a ship-to-ship basis, but not in the open ocean; ocean traffic was largely untracked. On a good day, approximately 400,000 ship position reports are received from more than 22,000 different ship identification numbers! See more details HERE
Featured Image – ISS tracking individual ships crossing the seas