On any clear night, you can see about 8 meteors per hour from any given spot on the Earth. Sometimes during the year, the Earth crosses meteor streams, and the rate of meteors can go up to over 100 meteors per hour. These meteor showers are not the least bit dangerous. Sometimes, the meteors are larger than normal and can survive the trip through Earth's atmosphere. If a meteor strikes the Earth, it is called a meteorite.
Meteorites have many different sizes, ranging from pebbles up to several feet across.
These large meteorites are very rare, but smaller meteorites have been found all over the Earth. Every few years, a news report surfaces that somebody's house or car was hit by a meteorite, but these are fairly rare occurrences. There are currently no known cases of a person being killed by a meteorite. So, meteorites hit the Earth daily, and should be of no big concern to the average person. However, there are many larger bodies in the solar system, notably asteroids and comets, that would cause a large amount of damage if they were to hit the Earth.