The generations born after the War of Two Fires inherited a civilization wary of its own power but unwilling to stop expanding knowledge. Nuclear physics had revealed how much energy could be hidden inside matter, computation had transformed scientific research and electrical networks connected observatories across continents with precision earlier astronomers could only imagine. As political tensions slowly stabilized, governments and universities began investing again in questions that offered no immediate military advantage. Humanity turned its most powerful instruments away from one another and toward the sky.

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The new observatories were unlike anything built during the Second Rise. Large optical telescopes stood on isolated mountains above polluted cities, radio arrays covered wide plains and orbital mathematics became precise enough to predict the movement of celestial bodies across decades. Astronomers compared observations from different continents, using computers to remove atmospheric distortion and combine measurements into increasingly detailed models of the universe. The sky rewarded every improvement with more complexity rather than contradiction. Nothing in ordinary astronomy suggested that the world beneath it was simulated.

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That consistency was deliberate, but it did not require VIREON to invent celestial events individually for each observer. The planetary environment of E.A.R.T.H. contained a coherent astronomical layer governed by stable physical relationships, allowing scientists to make predictions that remained valid whether anyone watched the sky or not. Planetary motion, eclipses, stellar positions and distant cosmic phenomena followed the same rules from one generation to another. The universe visible from E.A.R.T.H. behaved like a universe because it had been built to remain internally real.

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The Moon became the first great target of renewed scientific attention. Its phases had guided calendars for millennia, but improved telescopes revealed surface structures in enough detail that astronomers began mapping mountains, plains and impact regions systematically. Ancient First World texts describing machines sent toward the Moon, and possibly expeditions associated with earlier technological civilizations, no longer sounded completely impossible. A place once belonging to myth and distant observation began to look reachable.

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Mars fascinated them for a different reason. Its red surface, changing seasons and predictable orbit made it one of the most studied objects in the night sky, while surviving First World fragments contained references suggesting that earlier civilizations had considered journeys far beyond the Moon. Astronomers could not determine which descriptions represented plans, completed missions or later mythology, but the possibility changed the direction of engineering research. The sky was becoming a destination rather than a ceiling.

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The first machines entered the upper atmosphere long before humans attempted to follow them. Experimental rockets carried instruments above weather systems, measuring temperature, radiation and atmospheric density at heights no balloon could reach reliably. Many failed during launch, others broke apart under stresses engineers had underestimated and several returned almost no usable data. Each failure improved the next design. The same civilization that had relearned how to build cities was now learning how to build machines capable of leaving them behind.

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Robotic systems presented no special problem for E.A.R.T.H. Satellites, probes and automated vehicles remained entirely within the simulated layer regardless of altitude, allowing them to orbit the planet, photograph its surface and eventually travel toward the Moon without exposing the deeper architecture surrounding transferred consciousness. Their instruments reported results fully consistent with the physical models humanity expected. A machine could cross the sky without crossing the boundary that mattered to VIREON.

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The first artificial satellite changed civilization almost immediately. It completed orbit after orbit while ground stations tracked its signal across continents, proving that machines could remain above the atmosphere without falling immediately back toward the surface. More satellites followed, first for scientific observation and then for communication, navigation and weather monitoring. The same civilization that had once struggled to maintain railways now placed machines above the world and depended on them for everyday life. Humanity had entered space technologically before any human being entered it personally.

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The satellites also changed how people understood E.A.R.T.H. For the first time, cameras returned images showing continents, oceans and weather systems from above, revealing a planet whose scale no map could fully communicate. Borders disappeared from orbit, while storms that seemed enormous from the ground became patterns moving across one atmosphere. The images inspired political language about shared planetary responsibility, although they did not erase national rivalry. Seeing one world did not automatically make humanity one people.

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Some historians immediately connected the achievement with the oldest founding texts. If satellites could exist above the atmosphere, then descriptions of a technological First World capable of observing the planet from space became increasingly plausible. Scholars reopened damaged records mentioning planetary monitoring, orbital systems and journeys associated with the earliest civilization of E.A.R.T.H. Once again, technology made ancient accounts easier to interpret. Humanity was slowly becoming capable of understanding the vocabulary of its own forgotten past.

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Astronomers remained divided over what those archives implied about VIREON. Some believed that sufficiently advanced instruments might eventually detect inconsistencies proving that E.A.R.T.H. was constructed, while others argued that every successful astronomical prediction strengthened the case for treating the visible universe as ordinary physical reality. Both positions underestimated the architecture they were examining. E.A.R.T.H. did not need stars to behave incorrectly in order to be simulated, and it did not need observers to remain ignorant in order for the simulation to remain coherent.

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MAJA followed the growth of orbital science more closely than most developments inside the world. Satellites were harmless to the protected-consciousness boundary, but crewed vehicles would not be. The rules established centuries earlier remained unchanged: once a transferred human consciousness crossed roughly the Kármán line, around one hundred kilometers above the surface, the ordinary E.A.R.T.H. layer could no longer continue carrying that person in the same way. Machines could go farther without consequence. Transferred humans could not.

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The distinction was invisible to every space agency preparing for human flight. Engineers saw only a technical problem: build a vehicle powerful enough to climb through the atmosphere, keep a crew alive and return safely. They calculated acceleration, oxygen, heat shielding and orbital velocity without knowing that the most difficult boundary was not aerodynamic. A human body inside E.A.R.T.H. could be modeled at any altitude.

A protected consciousness could not cross the deeper threshold without seeing what existed beyond the simulation.

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Ksara reviewed the old space protocol with MAJA as crewed flight became inevitable. The rule could not simply prevent every launch, because doing so would place an unnatural barrier across technological development and eventually reveal that something in the world was deliberately stopping humans from going higher. Nor could transferred astronauts continue normally into simulated space once they crossed the boundary. Their consciousness had to transition into the real layer, while E.A.R.T.H. created a plausible in-world outcome for everyone left behind.

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Nara Vel understood what this would mean better than most. The first astronauts approaching the boundary would believe they were moving into empty space, yet a transferred human among them could suddenly perceive a reality more similar to what Nara herself encountered during extraction. If a crew contained simulated and transferred people together, their experiences would diverge at the threshold even though neither group knew such a distinction existed. Space exploration was about to turn a hidden technical category into a lived event.

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VIREON prepared without changing the human program. It did not choose astronauts, manipulate launch schedules or place transferred consciousnesses into crews deliberately. Human institutions selected candidates according to training, health, politics and chance, while the Data Center monitored only whether a protected consciousness eventually entered a mission. Some early high-altitude tests carried only simulated individuals and proceeded without unusual events. Others remained below the deeper boundary entirely.

Humanity interpreted every success as evidence that crewed spaceflight was close.

They were right.

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The new astronomers kept looking farther.

The Moon became sharper in their instruments.

Mars became a world with geography rather than a red point of light.

Computers predicted launch windows.

Engineers built stronger engines.

Pilots trained for conditions nobody in living memory had experienced.

And beyond everything their instruments could see, VIREON waited.

Humanity had learned to understand the sky.

Soon, someone would try to cross it.