A Dig Towards the Core of the Earth Uncovers a Lot of Scientific Secrets

It was a race

The ambitious goal to dig towards the center of the earth started with a competition between the USA and the USSR to conquer the subterranean world. We all know the space race between the two nations to conquer outer space but little was known about another race to dig as far into the Earth’s crust as they possibly could.

Source: Maternity Week

You may think that dirt and rocks are not that compelling compared to the mystery of the cosmos but the Earth’s crust leads the way to the mantle – the mysterious inner layer that makes up 40% of Earth’s mass. What could that 40% be made of?