Life Thrives on Sunless Planet According to Science Fiction Novel

A science fiction novel has sparked a thought-provoking idea about life on a planet without sunlight. Chris Beckett's Dark Eden tells the story of a world where life thrives in the absence of solar radiation. The author came up with this concept in 1992 for a short story called The Circle of Stones.

At that time, Beckett was unaware that planets without suns do exist in our galaxy and beyond. However, he hypothesized that it's possible for life to emerge on such worlds. This idea is supported by the existence of thermal vents in Earth's deep ocean, which harbor unique ecosystems devoid of sunlight. Some scientists even believe that life on our planet may have originated in these dark environments.

Beckett's imagination was sparked by the possibility of free-floating planets existing without suns. He learned later that such worlds do indeed exist and are difficult to detect due to their darkness. Astronomers have used gravitational lensing to identify several examples of these planets, which are thought to be capable of supporting life.

The author didn't aim to create a scientifically accurate world when writing Dark Eden. Instead, he focused on developing a coherent narrative that would guide his imagination and make the story believable. Beckett's goal was not to educate readers about planetary science but to craft an engaging tale told from the perspective of its characters.

Beckett didn't conduct extensive research on the topic before writing the novel. His aim was to create a sense of authenticity in the world he had created, rather than provide scientific explanations for its workings. The story is presented through the eyes of its inhabitants, who are unaware of the underlying principles governing their environment.

The idea of life thriving on a sunless planet has sparked debate among scientists and science fiction enthusiasts alike. While Beckett's vision may differ from current understanding, it highlights the possibility that life can exist in unexpected environments. The concept raises intriguing questions about the conditions necessary for life to emerge and sustain itself in the universe.

The idea was to create a habitable environment on Eden by utilizing its internal heat sources. This concept led me to propose that the planet's hot core would have allowed for liquid water to exist beneath a thick layer of ice. The presence of liquid water is essential for life as we know it, and I hypothesized that this condition could have given rise to life forms adapted to the unique conditions on Eden.

One of these life forms was a peculiar organism resembling tree roots. It had evolved to tap into the heat emanating from the planet's hot rocks, using its sap-like fluid to warm the rocks and then pumping it back up to the surface. This process allowed the organism to harness energy from the geothermal activity beneath Eden's icy crust.

As these organisms continued to thrive, they began to exert a profound influence on their environment. By pushing upwards into the ice shell, they melted sections of it, releasing trapped nutrients that were then absorbed by the organisms themselves. This process had a cumulative effect, ultimately resulting in the creation of habitable surface areas and an atmosphere capable of supporting human life.

The thawing of Eden's surface laid the groundwork for the emergence of diverse ecosystems. Over millions of years, these ecosystems evolved into complex systems teeming with life forms that were adapted to the planet's unique conditions. This process paved the way for my subsequent stories set on Eden, where a community of humans struggled to eke out a living in this alien environment.

The human settlement on Eden was characterized by a primitive technology based on stone and wood tools. The inhabitants of this isolated world lived in awe of their ancestors' stories about Earth, which they had heard through oral tradition. These tales spoke of a sunlit world where people could fly through the air and animals possessed mystical abilities, such as seeing into each other's minds.

The cultural heritage of the Eden community was deeply rooted in these fantastical accounts from Earth. Their stories served as a reminder of their own exile from a world that was both familiar and yet utterly alien to them. As they struggled to survive on this unforgiving planet, they clung to the memories of their ancestors' experiences on the sunlit Earth, which seemed like a mythical realm in comparison to their harsh reality on Eden.

The surface of Eden is home to root-like life forms that have developed into structures known as "trees by its human inhabitants.

These tree-like organisms are at the center of a complex ecosystem on Eden, where other living things have evolved to rely on them for survival.

One such organism is the starflower, which has adapted to live off the roots of these trees and in turn provides a vital source of Vitamin D.

The absence of sunlight on Eden's surface has led to the development of bioluminescence among its life forms, with both the trees and starflowers emitting light.

This eerie glow illuminates the leafless forests of Eden at night, creating an otherworldly landscape reminiscent of a moonless night on Earth.

To create a believable ecosystem on Eden, I focused on designing animals that fit into a specific body plan, one that would allow them to thrive in their unique environment.

This meant adopting a six-limbed pattern for large animals, which seemed like the most practical and efficient way to navigate the planet's dark landscapes.

While this may seem restrictive, it's worth noting that many terrestrial animals also conform to a limited number of basic body plans - think monkeys, cows, crocodiles, and seagulls, all sharing four limbs despite their distinct differences.

In contrast, Eden's six-limbed creatures have evolved in response to the planet's specific needs, with adaptations such as large eyes that can detect even the faintest glows in the dark.

The evolution of bioluminescence on Eden has also led to some fascinating changes in the way plants and animals interact - for example, trees use luminous lanternflowers to attract pollinators, just like terrestrial flowers rely on color and scent.

These imaginative creatures are not just aesthetically pleasing, but also serve as a thought-provoking exercise in what life might be like on a world without sunlight.

The limitations of a sunless world are starkly apparent in Eden's ecosystem, where even the most ingenious attempts at simulating sunlight fall short of sustaining liquid water or a warm atmosphere.

When crafting fictional worlds like Eden, science is often adapted and modified to suit the narrative, rather than adhering strictly to scientific principles. This approach allows for creative freedom and can lead to innovative solutions that might not be feasible in reality.

The use of fiction science" is a common practice in science fiction writing, where authors take liberties with established knowledge to advance their stories. Dark Eden is no exception, as I drew upon various scientific concepts while also incorporating elements of poetic license.

In addition to the planet's unique environment, the backstory of how humans arrived on Eden is also shrouded in mystery. The convenience of faster-than-light travel allows for a more streamlined narrative, although this aspect is likely to be at odds with current scientific understanding.

The dark and foreboding atmosphere of Eden serves as a poignant reminder that its inhabitants are exiles, forever separated from their ancestral homeworld. This sense of loss and longing is woven throughout the story, which explores themes of exile and redemption.

The symbolism of the circle of stones, marking the site where human ancestors first landed on Eden, represents the fragile hope of return and redemption that sustains the community.

The project I was involved in, initiated by Comma Press, brought together writers and astronomers from Jodrell Bank to create an anthology called Firmament. Each writer collaborated with an astronomer to craft a unique story based on their shared expertise.

My partner, Ida Janiak, helped me develop a scenario for a free-floating planet called Lupus, which is similar in size to Earth but has distinct characteristics. Unlike the hypothetical planet Eden, Lupus's surface is covered by a thick layer of ice that won't melt, with a liquid ocean beneath it.

The story we created imagines life on Lupus, a planet that shares some similarities with Europa, a moon of Jupiter. The details of this alien world are explored in our narrative, which will be published as part of the Firmament anthology in November.

A condensed version of our story will also appear in the Christmas edition of New Scientist online on December 16 and in print on the 19th, offering readers a glimpse into the imaginative possibilities of life beyond Earth.