Symphony

We all know that water and sound move in waves-but gravity? In Marcia Bartusiak's new book, we are introduced to the physics of gravity waves-or vibrations in space-time. We learn about the new generation of observatories, now being completed worldwide, that will give astronomers not just a new window on the cosmos but a whole new sense with which to explore the heavens. Instead of collecting light waves or radio waves, these novel instruments will allow scientists to listen to the very rhythms of the universe, adding an auditory dimension to the grand images we study through powerful telescopes.