If they hit Earth, which is an extremely rare event, then they could cause a disaster. Just seeing them in the night sky does not mean a warning of some disaster that will happen. So for the most part they are not related to disasters and are things to be enjoyed if you can see them in the night sky.
Comets are Comets and Asteroids are Asteroids
Asteroids and Comets
There are no known asteroids or comets that have impacted Mercury.
Many cultures have superstitious beliefs about comets and asteroids. The Philippines do not seem to share superstitions of comets and asteroids.
Comets!
Comets
asteroids belt
No. Comets orbit the sun.
Well, some asteroids have small moons, and comets are the size of Earth mountains.
It is possible for comets and asteroids to hit Earth, but they are extremely rare events.
In Japan, the superstitions that are related to comet and asteroid is that it is death calling. People therefore are usually afraid to see the comets and asteroids.
no