On a remote peninsula in northwestern Russia, scientists have spent decades trying to get as close as possible to the centre of the earth. At more than 12,000 meters, this hole is the deepest ever drilled by man. But at some point, something unexpected happened and the researchers were forced to stop their experiment for good.
It is no wonder that humans are fascinated by what lurks in the depths of the earth. But ever since the first artificial satellite was sent into space in 1957, humans have also been obsessed with the skies and discovering the secrets of the galaxy. And now, thanks to space agencies and private companies, we know more about the universe than ever before. But as we keep on looking to the sky, we might be forgetting about another equally or even more mysterious part of the world – the core of the Earth.