UFO? Drone? Aliens? You decide. On April 25, 2013 a US Customs and Border Patrol plane on routine patrol track an object that at first seems to be nothing more than a balloon floating in the wind until they realize the object is averaging 80 mph. They follow the object and watch it disappear into the ocean and reappear without losing any speed. It then splits into 2 identical objects and both then disappear back into the ocean.
This case has been studied extensively by the Scientific Coalition for UAP Studies. A link to their report appears below.