Mercury in retrograde? Jupiter in Sagittarius? New moon? Full moon? Eclipse? What does it all mean, and when is it happening? Astrologer Susan Miller, creator of the phenomenally popular Astrology Zone, talks about the workings of astrology, her roots in it, and she also offers a preview of the year ahead, including a sign-by-sign rundown of what opportunities can arise. Essential viewing for anyone who wants to better understand this cosmic science.