0
When you say "the world", I assume you mean the earth, where every human being who ever lived has resided.
In that case, the answer to the question is "none". Comets are small bodies that move in their own orbits around the sun, just as earth itself does.
It's possible that one or a few comets may have hit the earth during the earth's history, but we don't know that for sure. It certainly hasn't happened within the memory of anyone alive today, nor within the time that human beings have been keeping records of strange events.
What else can I help you with?
How many comets are there on planet Neptune?
There are no comets on Neptune because Neptune is a planet and comets are, well, comets. They have nothing to do with each other.
How many comets are seen in 30 years?
There is no set number, because new comets are discovered all the time. Not all comets that are discovered will be visible with the naked eye.
How many types of comets are there?
over 5,000
What are some examples of superstitious beliefs in Philippines about comets and asteroids?
Many cultures have superstitious beliefs about comets and asteroids. The Philippines do not seem to share superstitions of comets and asteroids.
What astronomer discovered eight comets?
Many astronomers have discovered that many comets. For example, David Levy is the discoverer or co-discoverer of 22 comets.
How many comets does Mars have?
There are no comets that orbit the planet Mars. Comets, some, orbit the sun. Mars on the other hand does have two moons, Phobos and Deimos.
How many comets the kupiter belt has?
around 90,000
What did people think of comets in the 1800's?
Comets have been in space since the start of time. In the 1800's there were many people who knew comets where a space phenomena, there were people who thought it was a message from the gods. What people thought of the comets depended on their cultural beliefs.
Do comets orbit mars and Jupiter?
No. Comets orbit the sun. Many asteroids orbit the sun in between the orbits of Mars and Jupiter.
What is the possessive noun for comets?
The singular form is comet, the plural form is comets, the possessive plural is comets'. Example: The comets' paths will not cross.
What do comets and asteroids not have in common?
Comets are Comets and Asteroids are Asteroids
Are there more colors or flavors in the world?
yes , the meteors , the comets , and the astroids are one.
