If a comet were to crash on Earth, it could be quite dangerous, because of the enormous amount of energy released. However, it is quite unlikely that such a thing happens, say, within the next 100 years.
they destroy the earth.Thats not good FYI
Comets are Comets and Asteroids are Asteroids
comets
Comets
how are comets classfied
There are no comets on Neptune because Neptune is a planet and comets are, well, comets. They have nothing to do with each other.
comets crash into all planets!Planets don't have comets. Planets have moons. Comets orbit the sun
quasars (black holes), comets (if they come too close) and hyper nova(only of sun but it will take 5 billion years to do so)
The singular form is comet, the plural form is comets, the possessive plural is comets'. Example: The comets' paths will not cross.
Comets.
Comets!
Yes Comets are Rocks
Comets move