Explore all known exoplanets — planets discovered beyond our solar system — both visualized and sonified in WorldWide Telescope across a 2D all-sky map and a 3D Milky Way galaxy. Hear exoplanet discoveries unfold through time where each planet's orbital period maps to a guitar note. Higher-pitched notes correspond to shorter orbital periods (fast orbits close to their star); lower-pitched notes correspond to longer orbital periods (slow orbits farther out).