Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Jan 1, 2019
Mysterious giant craters have started to appear in Siberia, some say they're a new phenomenon others that they have existed since the dawn of time. This riddle of nature attracted RT Doc to the land of the nomadic Nenets. Our team met visiting scientists and locals, in search of answers either from research data or ancient legends. This documentary was first aired on October 14, 2015.