Gravity

What is gravity? Who discovered the concept? If you have two objects, each of mass m, will they experience greater gravitational attraction when they are close together or far away from each other?

Gravity is the unseen force that attracts the body to the center of the earth, or towards any physical body that has a mass. The concept of Gravity was discovered by Sir Isaac Newton. The object with mass "m" will experience greater gravitational attraction if they are close together.