3 ms·

If it is not aliens then it could be time-traveling earthlings.

• Pompidou 5y ago
  It would be much coherent with their behaviour : their tropism toward military aeras and for powerfull countries and some sense of the actual world stage.
• nerfhammer 5y ago
  It's dolphins, duh. Notice how 100% of the credible sightings are over the ocean.