Which one of the following statements represents a correct description of the expansion of the universe?
A)Space is a vacuum, but the vacuum has real properties. As galaxies (or superclusters of galaxies) hurtle outward, the expansion is gradually slowing down by the resistance of space to the passage of the galaxies.
B)Space is static, but exerts an outward pressure on the galaxies in it. This pressure is accelerating the galaxies (or superclusters of galaxies) outward through space and away from each other.
C)Space has a separate existence, with the galaxies inside it. As space expands, the galaxies (or superclusters of galaxies) are carried along by the expansion.
D)Space is a vacuum, which is really nothing at all. The galaxies (or superclusters of galaxies) are hurtling outward through this nothingness.

Question

Quizplus · Accepted Answer

The correct statement is that space has a separate existence from the galaxies within it, and as space expands, the galaxies are carried along with the expansion. This is known as the "expansion of space" and is a key aspect of the Big Bang theory. Options A, B, and D are incorrect as they do not accurately describe the expansion of the universe.

Which One of the Following Statements Represents a Correct Description