What exactly is gravity, and how does it work? From Newton’s early groundbreaking discoveries to Einstein’s revolutionary ...

The idea of gravity as we know it has been around for a long time. More than 300 years ago, Isaac Newton first shared his theory of gravitation, describing how massive objects are attracted to ...

Legend has it that Isaac Newton had the moment of inspiration that would lead to his theory of gravity when, on a warm afternoon, he saw an apple fall from a tree and wondered why it should fall ...

New theory could finally make 'quantum gravity' a reality — and prove Einstein wrong; ... So Newton's Law of gravitation is a very very good description of how gravity works in most circumstances.

Einstein's Theory of General Relativity, an immensely important update to Newton's Law of Universal Gravitation, is currently our best approximation of how the universe ticks. But there are some ...

The cluster is at the center of a controversial new study proposing an alternative to Newton's theory of gravity. (Image credit: ESA/Gaia/DPAC, CC BY-SA 3.0) ...

Though Isaac Newton developed his theory of gravity in the 17th century, he didn’t think in terms of G. He was primarily interested in how the force moved objects.

An example is gravitation constant, G, in Newton’s gravity theory or the amount of dark matter in galaxies within the standard cosmological model.