Browsing Tag
outer core
2 posts
What’s At the Center of the Earth?
The USSR’s Kola Superdeep Borehole project, initiated in the 1970s, reached a depth of 12.2 kilometers—about one-third of…
Seismic echoes reveal a mysterious ‘donut’ inside Earth’s core
Rost9 / Shutterstock Hrvoje Tkalčić, Australian National University About 2,890 kilometres beneath our feet lies a gigantic ball…