A satellite image of a swirling hurricane Men with gas masks and protective suits on The planetary rover Sojourner A large group of refugees huddled together







Tornadoes come in all shapes and sizes. Born in the roiling entrails of storms, the most dangerous ones can pack winds over 300 miles (480 kilometers) an hour—enough to lift houses off foundations and toss cars into the air.
Photo of a tornado swirling in the distance

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