# Answer on Astronomy | Astrophysics Question for Peter DeGrace

Question #10722

Is the Gravitational Constant (Big G) the same all over the universe?

Expert's answer

The gravitational constant appears in Newton's law of universal gravitation, but it was not measured until seventy one years after Newton's death by Henry Cavendish with his Cavendish experiment, performed in 1798. Newton's law of universal gravitation states that every point mass in the universe attracts every other point mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

According to Newton's law of universal gravitation, the Gravitational Constant is the same all over the universe.

According to Newton's law of universal gravitation, the Gravitational Constant is the same all over the universe.

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