Mercury

Mercury is the planet of mind — how you think, talk, learn, write, and process information. Your Mercury sign shows your mental style: Mercury in Gemini moves fast and connects unrelated ideas; Mercury in Capricorn moves slowly and organizes systematically. Mercury also rules short trips, sibling relationships, and day-to-day communication (texts, emails, conversations) versus the bigger themes that Jupiter handles. Mercury retrograde — when Mercury appears to move backward in the sky, three or four times a year — is famous for amplifying communication mishaps, but professional astrology treats it more nuanced: retrogrades are review periods, not disaster periods. Mercury never moves more than 28° from the Sun, so it's always in the same sign as your Sun or one of the two adjacent signs.