CHAPTER 1 – Rogue World
Berrin began the second scan without deleting the first measurement. The right side of the screen showed the region the research ship had passed through; the left showed space that had not yet been examined. The mass she had detected lay on the boundary between the two. As the ship moved, the apparent positions of distant objects changed, and the observation program accounted for the shift, repositioning each one. Only one failed to match the movement of the recorded star systems.
Berrin pulled her chair closer to the console. She opened the object’s distance data, then transferred the measurement to a second sensor. If the first instrument had been wrong, the two results would have differed. The values confirmed each other. The chart before her showed a planet-sized mass, with no accompanying star visible around it.
At the other end of the bridge, Cevat was reviewing the observation notes made at the end of the shift. Without leaving her seat, Berrin sent him her screen.
“There’s a planet outside our course,” she said. “It isn’t moving with any of the nearby systems.”
Cevat looked first at the mass value, then at the distance measurement.
“Could it have an unseen companion?” he asked.
“I’m scanning the surrounding area. So far, there’s no such mass.”
“Let’s take an independent measurement. Prepare the approach calculations too.”
Berrin changed the external observation setup. Instead of monitoring a narrow interval around the planet’s position, she included a wider area in the scan. A distant, faint star might have appeared separate from the planet in the image. She added not only light measurements but also gravitational effects on the movement of surrounding objects. Getting the results would take time. Meanwhile, she went back through the observation records. The ship had viewed the same region from a different angle before. She found a faint trace that had been considered insignificant in the first scan.
When she matched the two images, the object’s movement became clearer. The orbital calculation did not close around any of the nearby stars. The planet was traveling through the space between systems.
While the third scan continued, Berrin went down the narrow passage beside the bridge to the observation compartment. Here she could view the instrument’s direct recording instead of the processed image on the main screen. It was harder to distinguish the target from its surroundings in the recording. A distant star shining in one corner of the screen overwhelmed the area containing the planet. Berrin subtracted the star’s contribution but kept a raw copy of the data she had removed.
Cevat stopped in the doorway.
“If we reduce the distance, does the same image fit a different mass?” he asked.
Berrin turned the display on the console toward him. Apparent size alone could be misleading. A smaller, closer object and a larger, more distant one could occupy the same area. But combining two measurements taken from different positions narrowed the possibilities. Berrin opened the region where the two observation lines intersected. The distance she used to calculate the planet’s mass came from that measurement.
“If I move its position in the first recording into this range, the image no longer fits,” she said. “I’m fixing the position here before calculating the mass.”
Cevat looked at the small point on the screen. It had appeared much clearer on the bridge. Here he needed Berrin’s marker to pick it out.
“Keep the first image in the file too,” he said.
“I have.”
As Berrin returned to the bridge, the approach program appeared before her. It displayed the target’s gravitational field, the ship’s speed, and the safe observation distance separately. They could not use a standard approach calculation centered on a star. They used the planet itself as the center. Nor did they assume the surrounding region, where small unseen companions might exist, was empty; until the first wide scan was complete, their course remained outside it.
Cevat sat down and extended the observation period. When he postponed the next scanning region on the expedition schedule, Berrin did not close its data. Some instruments would continue monitoring the ship’s surroundings. Focusing all their attention on one target did not require losing the remaining measurements.
The third distance result appeared first on the small screen. Berrin did not read the number aloud. She first matched it to the measurement time and the ship’s position. Then she compared it with the first two observations. The object’s movement now fell within a narrower line. The trial orbit around the nearby star could not be completed on the open screen; the calculated path passed outside the measured position.
Berrin closed that trial. Beside it, she placed the solution for movement independent of the star. When Cevat looked up to give his approval, the difference between the two results was visible. They were establishing that the planet was not merely in a dark direction at that moment, but was actually traveling through the space between systems.
By the time Ilgaz, the physicist, reached the bridge, the final measurement was complete. Berrin pulled out the chair in front of her for him. Ilgaz redid the calculation from the beginning, using the same inputs but following a different method. When he sent the result to Cevat’s screen, no broad area of uncertainty remained around the planet’s position.
“It isn’t bound to a star system,” he said. “None of the nearby stars is governing its current movement.”
Cevat approved the new course. As the research ship changed direction, Berrin kept the observation instruments trained on the target. The first image showed no distinct surface. As the approach continued, a circular outline emerged. A thin band reflecting the faint light of distant stars became visible along one edge of the planet. Berrin enlarged it and opened the atmospheric measurements.
Ilgaz examined the thermal map beside the image. Some regions were warmer than their surroundings. The difference did not seem confined to isolated sources deep below; it extended across broad surface areas. He checked the measurement twice. They had found a planet separated from its star, but the world before them was not entirely frozen.
• • •
Suna was clearing the sample preparation bench when the atmospheric data reached the laboratory. Before looking at the planet’s image, she opened the gas ratios. Then she checked the altitude at which the measurement had been taken. She could not use data from the upper layers in place of surface air.
“We need a sample from the lower layers,” she said. “With these values, I can only prepare a list of tests.”
Berrin showed the probe’s flight path. It would first record data above the atmosphere, then descend into an apparently clear area to examine the air directly. Alongside breathable gases, Suna added separate limits for pressure, suspended particles, and toxic compounds. They waited for surface images before choosing a landing site.
When the probe passed through the cloud layer, a dark expanse of water appeared on the laboratory screen. A pale strip lay along the shore, with rocky plains behind it. Farther inland, elevations formed intersecting low ridges. The visible-light recording was weak. When the craft’s lights came on, details of the shore became clear.
Suna paused the image. Near the water were dark patches that could be mistaken for vegetation. She compared them with a recording taken at another wavelength and saw that they consisted of wet rocks. She prepared a command for the probe to make a lower pass.
“Let’s not record a conclusion about life yet,” she said. “Let’s get a close view first.”
Berrin placed two sampling points on the map. One was on the shore, the other beside a shallow stream flowing from inland. The water samples differed in composition. The shore water was salty. The stream water contained a lower proportion of dissolved minerals. Suna set the second sample aside for a separate examination.
By the time Cevat came down to the laboratory, the probe had collected its third sample of near-surface air. The pressure and gas ratios confirmed the initial results. Suna scanned the list of hazardous compounds again.
“It looks suitable for short-term work,” she said. “The suits will stay sealed. The biological examination isn’t complete.”
Berrin opened the thermal map in the middle of the table. The measured temperatures were within a range that could support human life. Nor was the water confined to a single enclosed depression. There was surface flow along the probe’s path.
“The landing area?” Cevat asked.
“A plain upstream,” Berrin said. “The ground scan shows stable terrain. No sign of slipping. The craft can collect samples without landing on the shore.”
Ilgaz placed the amount of incoming external energy beside the temperature distribution. He saved them in separate files. He did not try to explain how the planet retained its heat at that point. It was too early to turn a few measurements taken before visiting the surface into a comprehensive formation model.
Cevat approved the landing preparations. Ekin, the records specialist, synchronized the times of the ship’s data and the probe recordings. Every sample collected on the surface would be processed with its collection point and measurement time. Even mixing up two identical-looking pieces of soil could distort the subsequent assessment.
• • •
Berrin took the front seat in the lander. Suna checked the sample compartments behind her. Ilgaz compared the craft’s measurement setup with the ship’s. Ekin and Cevat would remain in orbit, monitoring data from two probes scanning different regions.
When they descended below the clouds, almost everything beyond the windshield was dark. There was no nearby sun in the sky to illuminate the surface. Berrin continued the descent using the terrain diagram on the screen. When the craft’s lights reached the ground, scattered stones, a shallow fissure, and a flat area beyond it became visible.
The landing legs settled on the ground. Fine dust rose, lingered in the light, then dispersed. Berrin checked the external pressure. Suna examined the connections on all three suits. Before they opened the door, they received the result from the measuring rod lowered outside. The ground’s load-bearing capacity was sufficient.
Berrin stopped on the last rung of the ladder. Turning her light to the right, she saw a rocky surface; to the left, damp soil. The horizon was indistinguishable in the dark. The map in her helmet showed distances her eyes could not make out. She stepped onto the ground and scanned the surroundings without moving away from the craft.
“The surface team is down,” she said. “The link is open.”
Cevat brought the readings from all three suits onto his screen.
“The initial work boundary is unchanged,” he said. “Send your position before moving to the stream.”
Suna set up the sampling equipment beside the craft. Berrin removed the thin surface layer and put the soil beneath it in a separate container. Ilgaz lowered the temperature probe into the ground to compare its reading with the probe’s measurement. There was moisture at the bottom of the hole where Berrin took her sample. The soil compressed against the edge of the hand tool, then broke into small pieces when released.
Suna closed the first examination chamber. While the instrument worked, she collected air samples. She examined the near-ground layer and the air at chest height separately. The measurements confirmed a breathable composition. Even so, she did not open her helmet. A few favorable results did not eliminate every factor they had yet to investigate.
Before lowering the measuring rod she had taken from the craft into the soil, Berrin held it perpendicular to the surface. Ilgaz was measuring the temperature of a nearby stone. A small difference appeared between the two values. Berrin measured a little deeper at the same point. Suna had sealed the air sample before this procedure; particles rising from the soil would not contaminate her first container.
“Mark that hole,” Ilgaz said. “The probe’s surface measurement was a few meters from it.”
Berrin added the marker to the position record. The probe and the direct examination showed the same conditions, but they would not combine the results as though they came from exactly the same point. Suna placed the sealed sample in the external compartment and opened a new container.
To work outside the craft’s lights, they had aimed their lamps in different directions. Ilgaz’s lamp illuminated the stone in front of Berrin. When Suna bent over her sampling spot, her own shadow fell across the chamber. Berrin changed the angle of her light. The three established a way to work in the narrow area without blocking one another’s view.
When Suna sealed the soil container, she cleaned the surface of her glove. Berrin secured the digging tool to its carrier. They had not yet gone far from the craft. Even so, their air, soil, and temperature measurements showed that the suitability observed from orbit was present on the surface as well. Ilgaz recorded the final value and pointed Berrin toward the small watercourse. They would go there for the next sample.
They walked to the stream together. Its bed ran through a shallow depression that had been invisible from the craft. The light they directed onto the water reached the stones on the bottom. Berrin illuminated the opposite bank. Bare soil extended to the water’s edge, interrupted by a few rock outcrops.
“There’s no vegetation in this section,” she said.
Suna sealed the sample container and recorded images of both sides of the bank.
“I’ll compare it with the other regions,” she said. “Let’s not extend this record to the entire surface.”
While Suna filled the water container, Berrin lifted one of the small stones on the bank. The soil beneath was darker. She brought her light closer and activated her helmet camera to enlarge a thin line she had noticed. The line did not move. Suna closed the container and came over.
“Let’s take a sample here too,” Berrin said.
Suna took out a clean spoon. She collected a small amount from the damp patch beneath the stone. Then she put soil from the exposed side of the same stone in a separate container. She would not assume the two samples represented the same environment. One had less exposure to light and air; the other had undergone more surface change.
Berrin put the stone back. She added the sampling point to the position record. Standing beside the water, waiting for her eyes to adjust to the darkness did not help. With the craft’s lights far away, they could see only where their helmet lights reached. Although the continuation of the bank was clear on the plotted map, they could not make it out ahead of them.
The temperature reading on Ilgaz’s suit display changed. He had expected the air to grow cooler as they approached the water; the difference was small. He held the instrument near the ground and measured again. While Berrin waited for him, she moved her light along the streambed. The flow narrowed between two stones, then slowed in a small hollow.
Suna took a third water sample from the slow-moving section. There might be differences in small life-forms between the flowing and pooled portions of the same water. Instead of carrying the containers back to the craft in her hands, she placed them in her suit’s external carrier. If they fell, they would be able to tell which container had opened.
Cevat’s voice came from the ship.
“The readings are coming through. Return to the craft after the last sample.”
Berrin looked at Suna before answering. Suna indicated that the containers were sealed. All three were within the work boundary. Berrin opened the return route. Ilgaz recorded the final temperature and joined them.
Ilgaz measured the flow rate. Berrin collected a small sample of sediment from the edge of the streambed. All three stayed within the work boundary. They did not need to take a long walk on their first landing; directly confirming the surrounding conditions would be enough for the work to follow.
When they returned to the craft, Ekin had sent new scans. The second probe had examined a warmer belt, the third a broad inland body of water. No settlements, roads, or cultivated land had been identified in the images. Suna opened the surface recordings taken at different wavelengths. There was no consistent trace of extensive vegetation either.
The initial samples contained no tissue belonging to advanced life. Suna marked this as a provisional result. Smaller life-forms would require examination aboard the ship. Berrin added the atmospheric, water, and temperature data to the file. They saw conditions suitable for human habitation and the records of life in the same table.
Before takeoff, Cevat joined the link. No operating vehicles, communication transmissions, or settlements had been detected on the planet’s other side either. Berrin checked that the sample compartments were locked. As the craft rose, the external camera continued briefly to show their footprints extending to the water.
They kept the first review meeting aboard the ship short. Suna carried her samples to the laboratory. Ilgaz readjusted the measuring instruments. Berrin selected the next landing region on the surface map Ekin had prepared. Beyond the shore lay a broad expanse exposed by erosion. Images taken from above showed stacked layers. Berrin drew a cross-section line on the map and added it to the morning’s work sequence.
