Why do astronomers narrow their search to the "habitable zone" of other star systems?

Question

Quizplus · Accepted Answer

The "habitable zone" is considered the most likely place where conditions can support liquid water, a crucial element for life as we know it. This zone is at a distance from a star where temperatures are neither too hot nor too cold, allowing for the possibility of liquid water on a planet's surface, which is considered essential for the existence of extraterrestrial life.

Why Do Astronomers Narrow Their Search to the "Habitable Zone