When sonar first picked up a massive, stair‑like object on the floor of the Baltic Sea, the image looked less like geology and more like a movie prop. The structure’s circular outline, sharp edges and ...
A discovery made in 2011 by Swedish explorers has been at the heart of one of the most fascinating deep-sea mysteries. While searching for treasure, Peter Lindberg and Denis Asberg stumbled upon an ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results