Meteor Hits Russia

Several explosions have been recorded in Earth’s atmosphere that are likely caused by the air burst that results from a large meteor burning up as it hits the atmosphere. The best known, and most spectacular was the 1908 Tunguska event. The explosive yields of these events vary between 1 ton and 20 megatons, and witnesses describe most of these explosions as preceded by the appearance of a meteor-like object.[citation needed]