A new expedition brought strange news from Antarctica. As it turned out, the ice cover of the ancient continent hides a 4-kilometer-deep rift beneath it.


The problem is that the trough is too deep for such equipment. The echo does not come from the bottom, but from the walls, and this makes it difficult to find the bottom.
There is also a rather bold theory of a bottomless sinkhole under Antarctica. Science admits such a possibility – the failure can go all the way to the center of the planet.























