Onellantin

Onellantin is a fictional substance featured in the science fiction novel "The Martian Chronicles" by Ray Bradbury. Within the narrative, onellantin is described as a form of Martian energy or life force that is intrinsically linked to the planet Mars itself. It is often associated with the ancient Martian civilization and their unique relationship with their environment.

The concept of onellantin is central to the early encounters between humans and the dwindling Martian population. It is depicted as something that humans cannot fully comprehend or control, representing the mysterious and powerful nature of Mars. The Martians, being deeply connected to this substance, appear to derive sustenance and consciousness from it, and its decline is paralleled by the decline of their civilization.

When humans begin to colonize Mars, they encounter the lingering effects of onellantin, which often manifests in strange and unpredictable ways. It is not a physical element in the traditional sense but rather a more ethereal or spiritual force. The onellantin is what allows the Martians to communicate and influence their surroundings, and its presence explains many of the inexplicable phenomena described in the book. The eventual fading of onellantin is a significant factor in the disappearance of the native Martians and the transformation of the planet.