Listening to a sound from a universe of 1.3 billion light-years away is absolutely breathtaking.The innovation of technology, the creation of tools, the expectation of more sophisticated instruments, the foundation of the successful exploration of this gravitational wave.It's an important moment in the history of science, as one of the great modern masters of astrophysics, Stephen Hawking, told the BBC, "Gravitational waves provide a new way of looking at the universe, potentially revolutionizin