The 2010 CODATA values incorporate two new experimental measurements of G, the Newtonian constant of gravitation, which dictates the strength of gravity.
From the sciencedaily.com
The length of the year has remained virtually unchanged during this period because no evidence exists that the constant of gravitation has changed.
From the en.wikipedia.org
In practice, the masses of celestial bodies appear in the dynamics of the solar system only through the products GM, where G is the constant of gravitation.
From the en.wikipedia.org
Here G is the gravitation constant and M is a constant with the dimensions of mass.
From the en.wikipedia.org
According to Galileo's concept of gravitation, a dropped stone falls with constant acceleration down towards the Earth.
From the en.wikipedia.org
His theory of gravitation is now discredited because its predicted variability of the gravitational constant G disagrees with experimental findings.