For years, astronomers and physicists have calculated the age of our universe by measuring the time elapsed since the Big Bang and by studying the oldest stars based on the redshift of light coming ...

Explore how changing physical constants could revolutionize our understanding of the universe and science itself. It's a constant on SciNoFi that we do one post per episode of a given show. But as we ...

In physics, there are a host of standard constants: the speed of light, the charge-to-mass ratio of the proton, and Planck's constant, to name just a few. Repeated measurements going back a few ...

This press release is available in German. The mass ratio of protons and electrons is deemed to be a universal constant. And rightly so, as the latest radio-astronomy observations of a distant galaxy ...

YET another fundamental constant of nature may have changed over the last 12 billion years. If confirmed, the result could force physicists to radically rethink their theories and provide support for ...

Through extremely high precision measurements of a pulsar orbiting a white dwarf star, astronomers have found that the gravitational constant, which dictates the force of gravity, is "reassuringly ...

The kilogram finally has a precise meaning despite defying a rigorous definition for over a century. Delegates of the General Conference on Weights and Measures unanimously voted Nov. 16 in favor of a ...