Mercury Retrograde refers to a phenomenon in astrology where the planet Mercury appears to be moving backward in its orbit, as observed from Earth. This optical illusion occurs due to differences in orbital speeds between Earth and Mercury.

Astrologically, Mercury Retrograde is believed to influence various aspects of communication, technology, travel, and decision-making, often leading to disruptions, misunderstandings, and delays.

It is considered a time for reflection, reassessment, and reevaluation of plans and commitments.