# A single atom has a shield and electron around it. The farther the shield, the weaker the attraction of electron. Can the same theory be applied to the solar system?

Not so with gravity. There are no opposite masses. Everything you add to the system adds more mass and more gravitational attraction, even radiant energy ($E = m {c}^{2}$), so placing more stiff between two objects only results in more not less net attraction. This lack of a shielding property is a big difference between gravity and other fundamental forces.