Formation period of the solar system
Smilla's Sense of SnowThe formation of the solar system is the novel’s deep-time reference point for understanding the Gela Alta meteorite: unlike transformed terrestrial rocks, meteorites may preserve material from the solar system’s beginnings. That contrast gives the stone scientific interest and makes it a focus for competing interpretations of life, evidence, and belief.
Age and Material Evidence
In a conversation over dark grains on the snow, Tørk dates the solar system’s formation to 4.6 billion years ago, when it began to assume its present form. Earth’s geological record, he explains, cannot preserve an untouched sample of that beginning: rocks, ice, and water have undergone countless transformations. Meteorites matter because they arrive from outside those earthly processes, retaining a form that may reach back to the solar system’s origin. He describes them as generally composed of iron, nickel, and silicates.
This account establishes a material distinction rather than a complete history. The meteorite offers evidence of ancient origins precisely because it has escaped the metamorphoses that obscure Earth’s own beginnings. The book then places that evidence alongside the possibility that inorganic substances might participate in the emergence of life, without treating that possibility as settled fact.
From Cosmic Origins to Biological Claims
The conversation moves from meteorites to scientific and literary speculation about life arising from irradiated inorganic matter. Tørk invokes the work of Belgian chemist Ilya Prigogine and his students on dissipative structures, and describes a public already prepared to imagine the stone as a bridge between inorganic life and higher organisms. He argues that belief and expectation may shape how the stone is understood, regardless of its actual nature. The distinction between what the stone is and what people believe it to be becomes part of its significance.
The biological evidence in the final laboratory encounter gives this speculative frame a more immediate, testable counterpart. Under a microscope, a water flea, Cyclops marinus, contains a worm identified by Tørk as Dracunculus borealis, the Arctic worm. He describes its ordinary cycle through marine mammals and water fleas: larvae enter the flea, develop there over several weeks, and can reach a larger mammal when it takes in contaminated seawater. In the mammal, the parasite matures and reproduces; in this account, the ordinary cycle does not usually harm either host.
Tørk contrasts that established cycle with a claimed adaptation to human immunity. He says that after twenty-five years of research, the larva could evade the immune system by forming a covering from the infected person’s own proteins, then grow and complete stages of its cycle far faster than it does in sea mammals. The novel presents this as Tørk’s explanation of the threat, not as a general scientific finding. It connects the deep-time question of origins to a present danger through the parasite’s altered relation to its hosts.
Ecological Limits and Human Consequences
Tørk identifies host availability and environmental conditions as constraints on the parasite. He compares the Arctic worm with Guinea worm, whose transmission is associated with warm, stagnant surface water; rainfall and flowing, cooler water make those conditions less favorable. He gives figures of 140 million people exposed to Guinea-worm infection each year and 10 million cases, while noting that most infected people endure months of illness before the worm is expelled and that permanent damage is uncommon. His stated ecological principle is that a successful parasite ordinarily does not kill its host.
The Arctic worm’s proposed human adaptation threatens to break that familiar pattern. Tørk says the parasite can adapt to different fish, including saltwater and freshwater species, and therefore lacks a major restriction on the range of potential transmitting hosts. Yet he also explains why global spread has not already followed: development in sea mammals is slow, and parasites washed from the island’s lakes would depend on passing seals to carry them onward. In his account, human hosts accelerate the process. The danger therefore emerges not from ancient origins alone, but from a change in transmission conditions and host compatibility.
The Stone, Interpretation, and Belief
The solar system’s age supplies a scale against which the stone’s possible significance can be imagined, but it does not prove the claims attached to it. Tørk anticipates that journalists will link the Arctic worm, the stone, inorganic life, and higher organisms, and expects them to draw conclusions he considers secondary. What matters to him is the fear and hope such interpretations will release. The narrative thus distinguishes geological evidence, a laboratory observation, a proposed biological mechanism, and the public story built around them.
That distinction also shapes the novel’s treatment of scientific knowledge. The stone’s ancient material may be real evidence of cosmic history, while its status as a source or emblem of life remains bound up with interpretation. The formation of the solar system is therefore more than a date in Tørk’s explanation: it is the remote origin invoked to make the meteorite legible, and the beginning of a chain of claims whose consequences depend as much on what people accept as on what the object can demonstrate.