It’s been 120 years since Henry Cavendish measured the gravitational constant with a pair of lead balls suspended by a wire. The fundamental nature of gravity still eludes our best minds - but those ...

Of the four fundamental forces of nature, gravity is the most peculiar. It’s the most overreaching of the four forces, binding together structures hundreds of millions of light-years in diameter. Over ...

Could the universe have hidden dimensions we’ve yet to detect? The idea of extra dimensions has intrigued physicists for over a century, and while there’s no solid evidence to prove their existence, ...

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In our universe there is a big problem with gravity. It is far weaker than the other fundamental forces and scientists cannot explain why. One proposal is that its energy is leaking into other, ...

When it comes to understanding the fabric of the universe, most of what scientists think exists is consigned to a dark, murky domain. Ordinary matter, the stuff we can see and touch, accounts for just ...

Our universe has three spatial dimensions – or rather, three that our human senses can actively perceive. Some theories suggest there could be many more dimensions that we're unaware of, mostly ...

Scientists have measured gravity at an extremely short distance, in what they hope will tell us more about extra dimensions. The rest of this article is behind a paywall. Please sign in or subscribe ...

Scientists have used a pulsed slow neutron beamline to probe the deviation of the inverse square law of gravity below the wavelength of 0.1 nm. The experiment achieved the highest sensitivity for a ...

For more than a century, physicists have suspected that the familiar three dimensions of space might be only a small slice of ...