Whether space-time exists should be neither controversial nor even conceptually challenging, given the definitions of "space-time," "events" and "instants." The idea that space-time exists is no more ...

Scientist proposes framework for reconciling mathematically incompatible theories of quantum mechanics and Einstein’s gravity At the heart of modern physics is a gulf that scientists have spent more ...

When speaking of our universe, it's often said that "matter tells spacetime how to curve, and curved spacetime tells matter how to move." This is the essence of Albert Einstein's famous general theory ...

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The quantum revolution in physics — whose 100th anniversary we have just celebrated — taught us that at the most basic level ...

(via PBS Space Time) Physics is this close to understanding the entire universe. And what lives in this gap? Many physicists think it’s the elusive graviton—the quantum particle of gravity—whose ...