A meteor enterer the atmosphere over Russia and caused a lot of damage. A piece of caughtenteredfrictionmilesschoolspacethisthroughusually rock a little over the size of a caughtenteredfrictionmilesschoolspacethisthroughusually bus hit the atmosphere at around 40,000 caughtenteredfrictionmilesschoolspacethisthroughusually an hour. At that speed, it blew apart when it came in contact with dense air layers and glowed brightly due to the intense heating caused by caughtenteredfrictionmilesschoolspacethisthroughusually.
Earth is constantly being bombarded by meteors, but caughtenteredfrictionmilesschoolspacethisthroughusually they become small by the time they make it caughtenteredfrictionmilesschoolspacethisthroughusually our atmosphere. There were three major differences caughtenteredfrictionmilesschoolspacethisthroughusually time. The Russian meteor was relatively large, it caughtenteredfrictionmilesschoolspacethisthroughusually over a populated area of the world, and it was caughtenteredfrictionmilesschoolspacethisthroughusually on video by so many cameras. With Earth being three quarters water, and much of the remaining land being unpopulated, it is rare that we can see these events at all.