Recent measurements of the variations of the cosmic background radiation suggest that the curvature of the Universe is ______.
A) positive
B) negative
C) flat (i.e., no curvature)

Question

Quizplus · Accepted Answer

Recent measurements, particularly from the Planck satellite, indicate that the Universe is flat, meaning it has no curvature. This is consistent with the predictions of the inflationary model of the Universe.

Recent Measurements of the Variations of the Cosmic Background Radiation