Textbooks give strange, imprecise explanations of where things happen in quantum mechanics. Consistency with gravity needs a fresh approach.

How does gravity work? Gravity applies an effective force of mutual attraction to things with inertial mass, including physical matter and photons.

Einstein’s Theory of General Relativity is currently our best approximation of how the universe ticks. But there are holes.

How does gravity work? Gravity applies an effective force of mutual attraction to things with inertial mass, including physical matter and photons.

"This work is a step toward understanding how quantum mechanics and gravity work together, a major unsolved problem in physics." The first step toward quantum gravity, the "holy grail of physics ...

The story of Isaac Newton's life. He discovered gravity, and the laws of motion that underpin much of modern physics. Yet he had dark secrets.

In this episode of my live Q&BA chat session, I answered a question about how "gravity slingshots" work. This is the process of using the gravity of a planet to accelerate (or decelerate) space probes ...

With the Earth gravity setting this is fairly intuitive but when the gravity simulation is turned up for heavier planets or turned down for lighter ones the experience changes dramatically.