Soviet Geologists during the Cold War in the 1970's, dug 12 km into earth.They had to seal it forever.Having lived in Novosibirsk-Siberia, I found this an interesting confirmation of the Scriptures that hell is in the inner core of earth.https://www.youtube.com/watch?v=5mcMeD2jOFw&t=15shttps://www.youtube.com/watch?v=OQTx1MMszAohttps://www.youtube.com/shorts/ZGy_qKYhAWkhttps://www.youtube.com/shorts/5H96WEbholAhttps://www.youtube.com/shorts/yerMh_1cXW4https://www.youtube.com/watch?v=RxMa6VD7DOEh