After a 10-year effort, physicists got a value for “Big G” that does not settle the debate over one of nature’s hardest numbers to nail down.

A NIST researcher has unveiled the results of a 10-year quest to measure the gravitatinal constant., which determines the strength of the attraction between two masses anywhere in the universe.

Earth’s gravitational force, g, has been known for centuries. But the exact value of G, the universal gravitational constant, ...

One of nature’s venerable constants – gravity – may not be the same for every type of particle in the universe, suggest new calculations. The finding could explain a persistent mystery regarding how ...

Gravity, one of the constants of life, not to mention physics, is less than constant when it comes to being measured. Various experiments over the years have come up with perplexingly different values ...

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