Why is "Cancer" the Name of a Zodiac Sign?
Exploring the celestial crab and its ancient roots
The Celestial Crab
The zodiac sign Cancer, represented by the Crab (or sometimes a Lobster), is one of the oldest constellations in the sky. Its name comes directly from the Latin word for "crab." But the connection goes deeper, tracing back to ancient Greek mythology and the story of Hercules.
In the myth, during Hercules' battle with the multi-headed Hydra, the goddess Hera—who opposed Hercules—sent a giant crab to distract him. The crab bit Hercules' foot but was swiftly crushed. As a reward for its service, Hera placed the crab's image among the stars.
Thus, the constellation was named "Cancer," the Crab, to immortalize this creature. In astrology, the sign inherited the name and symbolism. Despite sharing its name with a devastating disease, the astrological sign has no connection to it. The disease's name comes from the Greek word "karkinos," also meaning crab, used by physicians to describe the spreading shape of tumors.
Astrological Significance
Cancer is a Water sign, ruled by the Moon. It is associated with emotions, intuition, protection, and home. Just as a crab carries its shell, Cancerians are known for their protective outer layer and soft, sensitive interior. The symbol represents retreat and self-preservation, key traits of this nurturing sign.
A Name Through Time
The name has remained consistent through cultures: "Cancer" in Latin and English, "Karkinos" in Greek, "Saratan" (the crab) in Arabic astrology. This consistency highlights the enduring power of the original myth. The zodiac sign and the constellation are fixed in human culture, a testament to our ancient desire to find stories in the stars.
So, while the word "cancer" today may evoke a modern medical challenge, in the context of the zodiac, it forever tells a story of mythology, celestial honor, and the timeless human practice of mapping our lives onto the heavens above.
Astrology & Mythology | The Stars and Their Stories