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What Is Gravity Made Of?

A "cosmic fingerprint" reveals the universe's beginning and gravity's microscopic secrets.
Publish Date: Topic: Physics + MathPhysics & MathNova
By Greg Kestin

One of the most incredible physics discoveries of the century has revealed a "cosmic fingerprint" explaining the beginning of universe and gravity's microscopic secrets. Go back to the beginning of time to see how quantum particles in the infant universe gave rise to a phenomenon called "inflation." This new evidence tells not only why the universe exploded outward during its birth, but also that gravity is made of quantum particles, called gravitons.

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