More people have visited the moon than in the deepest places of our home planet. The oceans cover 70% of the Earth's surface and are the largest inhabited place in the world, but we managed to explore only 1% of the seabed. Many mysteries are still waiting in the depths of the blue sea.
Baltic anomaly
Some consider the Baltic anomaly to be an alien artifact from the Ice Age, while others believe it is a Nazi anti-submarine device. Most surprisingly, all electronics stop working within a 650 meter radius of the subject. Here we wrote about this in more detail.
Megalodon of the Mariana Trench
Japanese scientists investigated marine life at the bottom of the deep-sea Suruga Bay and at some point decided to lure predators here. What they didn't expect was the appearance of a shark that was at least 30 meters long. Today it is believed that this is one of the few megalodons that have survived to this day.
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Giant squid
For a long time, giant squids were considered just an invention of sailors. However, the first live squid was captured on camera in July 2012: it reached 13 meters in length and weighed about half a ton.
Voice of Cthulhu
In 1997, the hydrophones of the National Oceanic and Atmospheric Administration (NOAA) picked up one of the loudest sounds ever recorded off the southern coast of South America. The sound, named Bloop, was captured by two hydrophones at a distance of approximately 4800 km. apart. It resembled the sound of a sea animal, but the volume of the sound was so great that it could not be made by a sea creature known to science. For convenience, scientists have dubbed the sound "The Voice of Cthulhu" - who knows, maybe this really awakened a terrible beast from the books of Lovecraft.
Lost submarines
In 1968, four countries (Russia, USA, Israel and France) lost their submarines at the same time. Searches have yielded no results, although the squares of the stay of the submarines have been repeatedly checked.
Deep sea photosynthesis
There may be no sunlight on the ocean floor, but some bacteria near hydrothermal vents use the dim red glow to photosynthesize and produce food for themselves. Scientists are still trying to figure out how this is even possible.
Giant snake
According to many oceanographers, young sea snakes can reach eleven meters in length. A hundred years ago, a meeting with such a creature on the high seas cost the sailors gray hair, but today scientists are a little closer to understanding this strange creature.