Are you one of those people who looks up at the sky at night with awe and wonder? The celestial heavens have fired the imaginations of scientists, explorers and astronomers throughout mankind's history -- but though we haven't yet travelled far beyond our own planet, a wealth of information about our own solar system is now available, from statistics to stunning high-resolution images (thanks to telescopes, probes and various manned and unmanned NASA missions). We take a look at an interactive "book" app for the iPad that takes us on a guided tour of the various feat
