Why have few planets with conditions considered habitable have been found so far?
A)Habitable planets are thought to be highly improbable.
B)Terrestrial planets at 1 AU distance are hard to detect with current technologies.
C)Giant planets usually create conditions that are unfavorable for terrestrial planets.
D)Very few solar systems are thought to have had suitable angular momentum to create terrestrial planets.

Question

Quizplus · Accepted Answer

Most of the exoplanets discovered so far have been detected through indirect methods, such as the transit method and the radial velocity method. These methods are less effective in detecting smaller planets at a greater distance from their star. Habitable planets are likely to be terrestrial planets at an optimal distance from their star (known as the habitable zone), making them particularly difficult to detect with current technologies.

Why Have Few Planets with Conditions Considered Habitable Have Been