How will gravitational wave discovery the scientists in their quest to fully understand gravity?

The heavier the body is, the stronger its gravitational pull. Just like earth, we feel gravitational pull because we are attracted to earth and so is the moon. Also, the sun is heavier than the earth and therefore, we are attracted to the sun because of its gravitational pull. When the earth revolves around the sun, both of them releases gravitational waves. Gravitational waves are ripples of waves travelling outward from the source. The more massive the orbit of two bodies, the more it emits gravitational wave. And everything around it that is near within the wave experiences a ‘pull’ toward the orbiting bodies. The advantages we get when we can measure gravitational waves are; one, we can measure the activity between two bodies in orbit in the universe, two, scientist can estimate the merging of two bodies in the universe every 15 minutes by using LIGO and three, we can know the behavior of other bodies that we did not know exist.