Astrology has existed for thousands of years and has roots that span the globe. But is it a science or a religion or just a kind of personality test? And why is it more popular than ever? This week, the story of how finding our fates in the stars moved from the fringes to the mainstream and became a multi-billion dollar industry.Learn more about sponsor message choices: podcastchoices.com/adchoices)NPR Privacy Policy)