* Comets and asteroids are celestial objects: They are made of rock, ice, and dust, and their behavior is governed by the laws of physics.

* No scientific evidence supports their association with bad luck: There's no scientific evidence to suggest that comets or asteroids bring misfortune, disasters, or influence human affairs in any way.

* Their impact is a natural phenomenon: While impacts from these objects can be catastrophic, they are natural events that occur over long periods. They are not signs of divine wrath or supernatural influence.

* Historical beliefs were based on fear and lack of understanding: Many ancient cultures lacked the scientific understanding to explain comets and asteroids, leading to superstitious beliefs. These beliefs were often used to explain events they couldn't control.

Here are some common superstitions about comets and asteroids and why they are not true:

* Comets are harbingers of doom: This superstition likely originated from their unexpected appearances and the bright, often fiery, trails they leave in the sky.

* Asteroids bring bad luck: This belief is likely rooted in their association with potential impact events. While impacts are real, they are rare and not necessarily tied to bad luck.

In summary: Superstitions about comets and asteroids are based on fear and lack of scientific knowledge. Today, we understand these objects as natural celestial bodies governed by the laws of physics.