Well then isn't it obvious that due to the size and density of the star, gravity waves would form.
Just to avoid confusion, the gravity waves result from the orbit of the star about another star. Newtonian gravitational theory would predict a stable orbit, while GR predicts a decaying orbit with energy emitted from the system via gravity waves. A single isolated massive object could not be used in this experiment.
In a sense, yes it was obvious. General does predict gravity waves, and the theory is well verified. What's discussed here is confirmation that Einstein's theory is correct.
What makes the current experiment unique is that it is an experiment using visible light rather than radio waves to determine the variation in orbital periods. Also the results were gathered in a rather short period of time.
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