According to the theory of cosmic inflation, during a brief early "inflationary period," the universe
A) expanded at lightspeed.
B) quickly became far more densely filled with matter.
C) expanded at a speed that was only slightly slower than lightspeed.
D) quickly became far more densely filled with energy.
E) expanded at a speed that exceeded lightspeed.

Question

Quizplus · Accepted Answer

During the inflationary period, the universe expanded exponentially at a rate faster than the speed of light, which is allowed because it was space itself expanding, not objects moving through space.

According to the Theory of Cosmic Inflation, During a Brief