Planets in a planetary system other than the solar system
A) have never been detected.
B) have been detected.
C) are an impossibility.
D) are universally present.

Question

Quizplus · Accepted Answer

Planets in planetary systems other than our own, known as exoplanets, have been detected. The first confirmed detections came in the early 1990s, and since then, thousands of exoplanets have been found in the Milky Way galaxy using various detection methods, such as the transit method and radial velocity method.

Planets in a Planetary System Other Than the Solar System