Albert Einstein had a theory in 1916. He believed that there must be space collisions occurring somewhere in the cosmos. These collisions might produce microscopic sound waves that contain a wealth of information about the far reaches of the universe. But it remained just a theory. He was never able to demonstrate it. The same inquiries were made many years later by an immigrant scientist by the name of Gabriela Gonzalez. She joined a group of physicists who were attempting to demonstrate Einstein's theory using contemporary technologies. There was nothing at first. Then, however, they picked up a sound. Until they were certain, Gabriela and her team investigated, measured, and repeated their measurements. Completing the work that Albert Einstein had begun 100 years earlier, Gonzalez broke ground for new space-time research. In a fascinating picture book that covers 100 years, 2 pioneering scientists, and 1 trailblazing discovery, Patricia Valdez sheds light on a little known but extraordinary story.