In Siberia, there is a huge crater commonly known as the gateway to hell. Scientists think they have a lot to learn about our planet’s future from this crater. Credit: Contains Modified Copernicus Sentinel data 2020 – CC BY-SA IGO 3.0 In the cold and unhospitable environment of Siberia, a giant hole is breaking open the land. This hole has the shape of a stingray, and it is viewable from space. The story of this “Gateway to Hell” in Siberia dates back to the Cold War, as shown by declassified imagery from the 1960s, when it was barely visible. Now,...