A NASA Satellite photo over India, as the festival of lights begins. Diwali, the Hindu festival of lights, stretches beyond India, a five-day holiday encompassing multiple stories from around the world, involving Hindus, some Buddhists, Sikhs and Jains. For India, however, where roughly 80 percent of the population practices Hinduism, Diwali 2011 is and will be a massive and deeply Hindu affair, one involving dancing, shows, religious worship and lots of fireworks. (NASA)