**Date Published:**

April 25, 2014

**Keywords:**

The universe equation; the universe expansion theory

**Abstract:**

This paper explains the behavior of the entire universe from the smallest to the largest scales, found an equation that changed the universe, established the expansion theory of the universe without dark matter and dark energy,and obtained the expansion acceleration. It shows that gravity is action-at-a-distance and that a gravitational wave is unobservable. Thus,a new universe model is suggested that the universe has a center consisting of the tachyonic matter.

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