Gravity is supposed to be the most familiar force in nature, yet at the deepest level it remains the least understood. A bold ...
The accelerating expansion of the universe is usually explained by an invisible force known as dark energy. But a new study ...
Every time a coffee mug drops, a satellite orbits or an astronaut floats, we are watching the same phenomenon play out under ...
The accelerating expansion of the universe could be explained by modifying general relativity so that gravity has mass – or so thinks a small group of physicists. Matthew Francis reports What lies ...