Yellowstone National Park in the United States is one of those places that must be visited. However, under this park is located one of the 20 known to us super volcanoes. The worst thing is that he can start erupting at any moment. Supervolcans for one eruption emit more than 1,000 cubic meters of fragments of mountain peoples and ash. Because of this eruption, the atmosphere of our planet will be filled for a long time with a huge amount of ash, which will limit the flow of sunlight. This, in turn, can lead to a winter that will last several years. There will be such global climate changes that a significant part of living individuals on the planet will die. Perhaps, we will be among them. But how can this catastrophe be prevented? It seems that NASA has an answer to this question.