You can watch a space show in a planetarium but how can you invite visitors to interact directly with data-based astro-visualizations? For over a year and a half we developed mobile and wearable interactive prototypes using Digital Universe, the most complete and accurate 3-D atlas of the Universe. The experiences allowed visitors to discover that stars within constellations are not coplanar, as they appear from Earth. As users walked toward (and into) a constellation, it became apparent that some stars are much closer than others. Testing prototypes in, and for, the Hall of the Universe, we eventually turned to gesture-based interatives on the Hall’s Astrobulletin screen.