Gravity is a fundamental force of nature; it is an attractive force between any objects that have mass. The strength of gravity between everyday objects, such as a desk and a chair, is extremely small ...

It’s a force to be reckoned with. Gravity is what holds Earth in orbit around the sun and keeps us from floating off into space. Unfortunately, it can — quite literally — be a real downer. The ...

Earth’s center of gravity can be located! We talked a few months ago about measuring the force of gravity surrounding the Moon, and that the way we do this measurement is by having twin satellites, ...