Given the basic building blocks of planets are widespread and the same laws of physics operate everywhere, we would expect
A) we have not detected any other planetary systems so we have no way of knowing
B) other planetary systems to be identical to our own with the same number and types of planets as our own solar system
C) other planetary systems to be laid out in a similar manner to our own with inner rocky terrestrial planets and outer gaseous Jovian planets
D) other planetary systems to be very different than our own because the detailed conditions that existed in our own solar nebula are unlikely to have been replicated elsewhere

Question

Quizplus · Accepted Answer

The fact that basic building blocks of planets are widespread and the same laws of physics operate everywhere suggests that other planetary systems would also consist of inner rocky terrestrial planets and outer gaseous Jovian planets, similar to our own solar system. The formation of planets is largely determined by the conditions within the solar nebula, and these conditions are expected to be fairly common in other star-forming regions. While there may be some variations in the composition or number of planets, the basic layout of other planetary systems is likely to be similar to our own. Option A is incorrect because we have detected other planetary systems, and they provide evidence that supports this idea. Option B is incorrect because the number and types of planets can vary based on a variety of factors. Option D is incorrect because while there may be some differences in the details, the overall structure of other planetary systems is expected to be similar to our own.

Given the Basic Building Blocks of Planets Are Widespread and the Same