Even on a black hole’s turf, an essential constant of nature holds steady. According to standard physics, the fine-structure constant, which governs interactions of electrically charged particles, is ...

Sound has a speed limit. Under normal circumstances, its waves can travel no faster than about 36 kilometers per second, physicists propose October 9 in Science Advances. Sound zips along at different ...

Paving the way for transforming the world's measurement system, an international task force has determined updated values for four fundamental constants of nature. Paving the way for transforming the ...

As given by Britain’s brilliant, opinionated Sir Arthur Stanley Eddington, the seven fundamental constants of Nature are: e, the charge of an electron; m, the mass of an electron (at rest); M, the ...

In this lively volume, Cambridge physicist Barrow (The Book of Nothing) considers the natural constants--the handful of seemingly eternal numerical values, such as the speed of light, the weight of ...

We can never 100% prove that the constants really are constant. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. There is a set of very special ...

Some things never change. physicists call them the constants of nature. Such quantities as the velocity of light, c, Newton’s constant of gravitation, G, and the mass of the electron, m e, are assumed ...

A 10-year effort to measure gravity, a fundamental force in the universe, has failed to come up with a conclusive answer.

If you’re confused by modern cosmology, you’re not alone. Cosmologists themselves are confused, and two new results, using very different methods, add to their collective bewilderment. The results are ...

Using known distances of 50 galaxies from Earth to refine calculations in Hubble's constant, astronomers estimates the age of the universe at 12.6 billion years. Using known distances of 50 galaxies ...