Big G, known formally as Newton’s gravitational constant, describes the strength of gravity. But its precise value remains a mystery. Neil Webb ...

Early arrivals: the first four images of the gravitationally lensed supernova are shown in yellow. (Courtesy: NASA/ESA/JHU/UCLA/UC Berkeley/STScI) A study of how light from a distant supernova was ...

An analysis of the jumps of a hydrogen atom’s electron has yielded a new, precise value for the Rydberg constant, a fundamental quantity in physics 1. The Rydberg constant is related to hydrogen ...

New value for the fine-structure constant agrees with Standard Model predictions while constraining existence of dark sector ...

This persnickety number determines the strength of magnetic fields. It figures in everything from motors and generators to ...

Electrons in graphene can act like a perfect fluid, defying established physical laws. This finding advances both fundamental ...

Dark energy might not be constant after all First results from the Dark Energy Spectroscopic Instrument offer hints of new physics.

Debate over the universe’s expansion rate may unravel physics. Is it a crisis? Scientists tackle disagreements about the Hubble constant ...

In modern physics, the constant "c" plays a twofold role. On the one hand, "c" is the well known velocity of light in an empty Minkowskian space—time, on the other hand "c" is a characteristic number ...

Almost immediately, astronomers began arguing about the actual value of this constant, and over time, realized that there was a discrepancy in this number between early universe observations and ...