Celestial Mechanics & Astrology When Planets Walk Backwards Understanding retrograde motion — why planets appear to reverse course, and what it really means for us here on Earth. Deep Dive ✦ Planet Retrograde & Relative Motion Few phrases in astrology carry as much weight — or as much collective anxiety — as "Mercury is in retrograde." Social media fills with warnings. Contracts are left unsigned. Phones are clutched a little tighter. But what does retrograde actually mean? Is a planet truly reversing through the sky? The answers live at the beautiful intersection of orbital mechanics and ancient sky-watching, and they are far more fascinating than the memes suggest. "The planets do not wander backwards — only our perspective makes it appear so. Retrograde is a dance of relative motion, a cosmic optical illusion written across centuries of sky." ✦ What Is Retrograde Motion? The word retrograde c...