One of the central assumptions in astronomy is that the physical laws of nature:
A) change when objects move at high speed.
B) change throughout the age of the universe.
C) depend on the mass of the objects involved.
D) are the same everywhere in the universe.

Question

Quizplus · Accepted Answer

The physical laws of nature, such as the laws of gravity, electromagnetism, and thermodynamics, are believed to be universal and applicable throughout the entire universe. This assumption is known as the cosmological principle, which states that on a large scale, the universe is homogeneous and isotropic, meaning that the same physical laws and principles apply everywhere. This assumption is supported by observations of the cosmic microwave background radiation, which is incredibly uniform in all directions, suggesting that the universe has been the same everywhere since its inception. Thus, choice D is the correct answer.

One of the Central Assumptions in Astronomy Is That the Physical