Tornadoes are some of the most destructive forces of nature. Learn how tornadoes form, how they are rated, and the country where the most intense tornadoes occur.
COSMOS: POSSIBLE WORLDS is helmed سے طرف کی Carl Sagan’s collaborator Ann Druyan, who boldly carries the torch آگے with the 3rd season of the most beloved science دکھائیں on the planet.