June 10, 2021, marked the 90th anniversary of the birth of Boris B. Kudryashov, the legendary “Bur Burych”, a professor at Mining University. As a result of his scientific work, it became possible to drill the world’s deepest hole in the ice of Antarctica, 3769 m deep, and open the subglacial Lake Vostok, which plays an enormous role in the study of climate change in recent millennia.