Chapter 4: VECTOR & FRICTION
Month three of the burn began with a Doppler calibration, because month three of the burn always began with a Doppler calibration.
Christina came onto the bridge at 0740 ship time and found the watch already deep in it. The main display carried the telemetry waterfall in cold blue strata, gigahertz-deep, the received spectrum of every star the forward array could reach, cascading down the screen in patient sheets. The drive hummed through the deck plates at its unchanging frequency. Three months of continuous 0.12G acceleration had turned the hum into a kind of silence. You stopped hearing it the way you stopped hearing your own pulse.
Yeonwoo stood the astrometrics console with Mackenzie Foy at her shoulder, both of them lit from below by instrument glow.
"Array's back on Beta Hydri," Mackenzie said. "Locked and stable. Residual is two millihertz."
"Two is the floor. Split it to the second channel and I want the same number twice."
Mackenzie keyed the splitter. The waterfall doubled, mirrored, and both traces settled into the same flat line. Yeonwoo watched them agree.
"Confirmed. Doppler center is within three meters per second of the ephemeris."
"Delta-v margin?"
"Unchanged. Reserve burn budget stands at one hundred twelve meters per second through turnover." Yeonwoo turned her wrist-deck toward the display. "We are spending money exactly the way the mission plan says to spend it."
"Then the money is fine." Mackenzie unlatched the calibration cover and reset the lockout tag. "You know what I like about Doppler work. The star can't lie. It's coming toward us or going away and it doesn't care what Geneva thinks about it."
"The star is my favorite colleague," Yeonwoo said. "It's precise and it never asks me about my sleep."
Christina let the console chatter wash over her and took the pedestal. Overhead, the white nodes ticked through their sweep. Four minutes and forty-eight seconds now, one way. Eleven seconds a day, spent like ballast. Every word spoken on this bridge was already old before it reached the ground.
At 1200 the noon ration cycle pulled the watch off the bridge in pairs, and Christina went aft with Blake.
The mess hall was the warmest room on the ship, because it was the only room the crew had chosen to make one. Six stainless tables, bolted down against the burn, and above them the same white nodes as everywhere else, watching the eating of rehydrated noodles with the same patience they watched reactor telemetry. Nobody looked at them anymore. The crew had made the cameras into ceiling tiles.
Karen Gillan had claimed the corner table with Jennifer and Freya, the strike wing eating together the way they did everything, shoulder to shoulder. Kat Dennings ran the ration dispenser like a harbor master, logging each draw. Sophie Turner sat with Natalie Dormer over a single shared coffee bulb, and the bulb's carrier loop had been passed back and forth so many times it had gone soft in the middle.
Christina took her tray to the center table. Blake sat at her right, half a step's distance, the standing geometry. Amy Acker and Yeonwoo drifted over from the bridge watch with their trays, and then Kim Se-jeong, and the table filled the way water fills a level place.
"Chicken and rice," Blake said, reading the foil pouch. "Again."
"Day ninety of chicken and rice," Karen called from the corner. "I'd trade a man for a lemon."
"You'd trade two," Jennifer said.
The laughter moved down the tables in a small warm ripple. Under the nodes, the laughter was exactly as loud as it would have been without them, which was the whole trick, and most of them had learned the trick without discussing it.
Christina tore the oxygen absorber from her pouch and let the steam rise. Around her the talk ran on its usual rails: Kat's inventory dispute with the galley printer, biome two's oxygen yield still riding three percent over projection, the recurring debate about whether hydroponics smelled like basil or like wet paint pretending to be basil.
"Anya says we're the healthiest crew ISO has ever launched," Jessica Henwick offered. "Nineteen sleep scores recovered since she moved the workout rotations."
"Recovered isn't rested," Mackenzie said. "My graph still has teeth in it."
"Teeth build character," Karen said.
Mackenzie's mouth twitched. "Character, per your definition, is why I've re-run the same thermal check four times in one week."
"You'll thank yourself at turnover," Serenay said from the far table, not looking up from her tray, and that settled it the way Serenay's flat pronouncements settled things.
Amy set her pouch down and turned to Yeonwoo with the unhurried precision she brought to everything, including trouble.
"So. Nav watch again tonight," she said. "Sectors nine and ten of the local catalog. Six hours alone at the astrometrics console." A beat. "If the second channel drifts half a millihertz, you'll log it yourself, or will you need someone to sit with you and watch it not drift?"
The table's ambient noise dipped a notch. Not silence. A notch.
Yeonwoo laughed, warm and easy, and reached for her coffee bulb. "Sectors nine and ten are catalog stars, Acker. They have been measured since before either of us was born." She sipped. "But thank you for volunteering your insomnia to a solved problem."
"I'm very thorough with solved problems."
"I'm sure you are." Yeonwoo's eyes crinkled, and she turned back to her tray, and the moment passed through the table like a coin handed over and handed back. Kim picked up the thread with a story about a mislabeled crate of spice paste, and the talk rolled on, and whatever the coin had been, it was now everyone's and no one's.
Cabin fever, Christina thought, watching Amy's profile over the rim of her pouch. Day ninety. Annabelle would call it stimulus hunger, recommend a rotation shuffle, and be right, and it would change nothing about the way a smart woman's attention pooled in the small places available to it. The mission wasn't compromised. The mission was a machine, and the machine was flawless. The frictions lived in the one-millihertz gaps between flawless operations, and the crew bled them off the only way that worked, which was laughter with a filing system.
Blake caught her look and gave back a degree of it. Nothing said. The XO's eyes went to Amy, to Yeonwoo, to the node overhead, and then to her tray, and the whole report fit in three glances.
At 1228 the galley door opened and the room's posture changed before anyone consciously noticed why.
Katheryn Winnick crossed the mess floor in her tactical loadout, braid tight, logger already out. She took the read on the whole room in one pass, the way she read every room, then came to the center table.
"Shift handover, Captain. Afternoon block."
"Go ahead."
"Engineering audits begin 1300. Serenay has drive stack three for plasma feed harmonics, Mackenzie assists after array shutdown. I'm walking hull integrity points fourteen through twenty-two with Anya." Katheryn's eyes flicked once to Yeonwoo, professionally. "Nav watch stands down at 1300. Doppler residuals are green."
"They're green," Yeonwoo agreed.
"Then the afternoon is yours, Commander," Christina said. "Run your points."
Katheryn nodded, keyed the logger, and paused. One beat too short to be insubordinate and too long to be nothing.
"Room's loud today," she said. "Good for morale. Logged it as nominal." And she was gone through the galley door, boots precise, with a security chief's talent for putting a sentence in a room and taking nothing back out.
Karen watched the door close. "She flatters like a hull inspection."
"Take the compliment," Jennifer said. "It's load-bearing."
The table broke up in twos and threes after that, trays racked, pouches flattened into the recycler. Christina carried her own tray to the station, and Blake matched her, and for a moment they stood in the small line the way everyone stood in the small line, two officers performing the least remarkable act aboard a nine-hundred-meter flagship.
Christina looked up once at the nearest node. It returned her gaze with white patience.
Ninety days, and the ship ran itself into a shape you could set a clock by. Telemetry waterfalls and plasma harmonics, audits and calibrations, the burn spending itself at exactly the planned rate. And underneath all of it, this: a shared coffee bulb gone soft in the middle, a joke about lemons, a hundred twelve meters per second of margin nobody wanted to touch. The excellence and the rituals were not two things. They were the same structure, load-bearing in both directions.
"Turnover in sixty-one days," Blake said quietly, racking her tray. "Where do you want the calendar board?"
"Center of the mess," Christina said. "Where everyone eats. If we're going to count down to the halfway point of the rest of our lives, we should count out loud."
The calendar board went up at 1300, riveted to the mess bulkhead between the ration dispenser and the recycler station, and by evening shift the numbers had already been touched twice, as if the crew needed to confirm the paint was real. Christina signed off on the placement and let the ship carry her forward into month three, and the afternoon blocks burned themselves down the way all the others had, audits and harmonics, hull points fourteen through twenty-two, the reserve budget holding at one hundred twelve meters per second.
By 2200 the bridge was Yeonwoo's.
She took the stairs down to Sub-deck 2 at 2215 with her slate clipped to her hip and the deep-catalog survey queue loaded, because the auxiliary telemetry hub ran the night work and the bridge ran the watch, and tonight's work was six hours of star survey that had to be done by hand even though it could have been done by code. ISO doctrine. Human verification of automated truth. Amy Acker was already there when Yeonwoo came through the hatch, wrist-deck synced, the low-band displays laid out around the nav console in cool blue fans.
"You're early," Yeonwoo said.
"I'm punctual. You're early." Amy didn't look up. "Second channel's been stable for twenty minutes. I checked it three times."
"Three times is Amy-standard."
"Amy-standard is why I'm down here."
Sub-deck 2 at night was the quietest habitable space on the ship. The main drive hummed through the structure overhead, one register down from the bridge, and the amber plasma conduits that fed the aft telemetry relays threw their warm ribbon along the low ceiling. One white camera node watched the hatch. Another watched the console. Between them there was a strip of shadowed bulkhead where the light didn't quite reach, and Yeonwoo had stopped noticing that strip weeks ago.
"Survey queue," she said, and brought it up. "Four hundred sixty-two catalog stars, sectors nine and ten. Cross-calibration against the Doppler center, manual review, both of us sign the package."
"Split it," Amy said. "You take two hundred thirty-one, I take two hundred thirty-one, we meet in the middle."
"You want the half with the binary in it."
"I want the half with the binary in it."
They worked. The console accepted each star's data, ran the residual, and returned it green or amber, and the green ones piled up like ballast spent. Yeonwoo's hands moved through the sequence with the economy of habit. Amy worked the calibration side, her fingers quick and precise on the wrist-deck interface, and the two of them fell into the rhythm that three months of shared watches had worn smooth: Yeonwoo calls the star, Amy confirms the trace, the console logs it, nobody says anything that doesn't need saying.
At 2340 the trace went amber.
"Theta Cassiopeiae subsidiary pair," Yeonwoo read. "Residual is four millihertz. Second channel?"
Amy brought the split up. "Four point one. Real."
"Real, then. Log it as a proper detection and flag the sector for reobservation." Yeonwoo keyed the entry, and the console's tone went from flat to pleased in the small way consoles were pleased. "First amber of the night. That's ours."
"That's yours. I just watched."
"Watching is a contribution. You told the crew bulletin that yourself."
Amy's mouth curved. "Quoting me at me. That's a new tactic."
The work resumed, and the hours folded. At 0140 the survey was at the binary and past it, three hundred stars green, one amber, and the hub felt smaller than it had at 2215. Six hours of low-band light and instrument tone does that. The ship's sounds contracted to the drive hum and the conduit whisper and the small click of Yeonwoo's keys, and the absence of everything else got loud the way silence does when you've been swimming in it for ninety-one days.
Amy stood up from the console stool and crossed the two meters to Yeonwoo's side, unhurried, and leaned in over the display to read the sector header. Close. Closer than the readout required. Yeonwoo could smell the antiseptic soap from the port-side washroom and feel the warmth off her shoulder, one centimeter of conditioned air between two uniforms.
"Your signature's drifting," Amy said quietly. "Three entries in the last ten minutes are a tenth of a degree off your usual call."
"My call is fine. Your proximity is not calibrated to anything."
"No," Amy said. "It isn't."
The word hung in the low blue light. Yeonwoo kept her hands on the keys and her eyes on the trace, and she felt the full weight of the overture settle onto the console between them, patient and calculated, the way everything Amy did was calculated. Three months without touch except harness checks and harness checks and harness checks. Ninety-one days of amber light and one-millihertz gaps. She understood exactly what it was. Stimulus hunger, Annabelle would say. A human being pooling her attention in the small places available to it.
Yeonwoo finished her entry, saved it, and turned on the stool.
She smiled. Warm, unhurried, real.
"Acker," she said. "My husband has a photo of the two of us at our wedding. In it I'm laughing and you don't exist yet. He watches this feed. Eight minutes, one way, every night." She tipped her head at the white node above the hatch. "So if you're asking something, the answer is: I love a man who runs the numbers too, and I signed the same paper Christina signed, and I meant it."
Amy held the look for a second. Then she straightened, stepped back the exact distance regulation asked for, and laughed, short and genuine at her own expense.
"Cabin fever," she said. "Day ninety-one. I'd like it noted that I diagnosed it in Mackenzie's thermal checks last week."
"Noted in the same log as your insomnia volunteering. Both entries marked humor."
"Humor," Amy agreed. "Filed where humor lives."
"It lives everywhere on this ship," Yeonwoo said. "And it keeps nothing. Turn around. Sector ten isn't going to survey itself."
Amy turned around. She took her stool. The distance went back to two meters, and the console's tone resumed, and something in the hub's air had changed shape without changing temperature, a coin handed over and this time not handed back, just set down on the table between them, everyone's and no one's. Yeonwoo's hands were steady on the keys. She felt the quiet tension of it settle into the shift the way the drive hum had settled into the deck plates, present, constant, load-bearing, and she thought: this is the new shape of us, and it will hold, because we both decided it would.
At 0312 the hatch cycled.
Anya Taylor-Joy came through with a breach lamp on low and a walkthrough slate in her hand, the heavy silhouette of the strike wing against the hub's blue glow. She took the room in one pass: two women at a console, two meters apart, four hundred stars green.
"Routine sub-deck walkthrough," she said. "Hull integrity points twenty through twenty-two are green. Night audit wants a signature on the survey queue."
"Survey is at four hundred nineteen of four hundred sixty-two," Yeonwoo said. "Signature at 0430, projected. One amber detection, flagged for reobservation."
"Theta Cass subsidiary pair," Amy added. "Four millihertz. Clean."
Anya keyed it, and her eyes did their quick professional sweep of the room, the node, the spacing, the two faces, and folded whatever it read away behind the same stillness she wore everywhere.
"Quiet sub-deck," she said. "Logged as nominal." And she was gone through the hatch, boots precise, the breach lamp swinging once and dimming.
The survey closed at 0431. Yeonwoo ran the final cross-check, Amy signed the calibration annex, and the package locked itself into the Earth queue with a timestamp that would arrive eight and a half minutes old and four light-minutes late and say exactly what it said: two specialists, six hours, one amber detection, nominal.
Amy racked her wrist-deck and stood, and for a moment they were the only two people awake in a nine-hundred-meter ship falling at one-tenth of a gravity toward a red dwarf.
"Same watch Thursday," Amy said.
"Same watch Thursday," Yeonwoo said. "Bring your humor entries. I'll bring the boundary that files them."
Amy's mouth curved, and she took it the way she took everything, precisely, and went up the ladder toward the amber corridor, and Yeonwoo sat alone at the console for one more minute with the hand still warm from the keys and the small folded shape of the night settled into its pocket, and keyed the lights down, and logged the shift closed.
By 0500 ship time, the hull was breathing in its lowest register.
The continuous 0.12G burn pressed through the deck plates, a faint, persistent gravity that kept soles flat against ribbed carbon weave and pulled sweat into slow, predictable drops. Along the spine of Section Four, the rest lighting remained clamped to deep amber and sleep-cycle crimson. The overhead ISO camera nodes hung every six meters, their status diodes blinking pale white in rhythmic intervals, streaming the dead hours back toward a Sun that was now four light-minutes and fifty-two seconds distant.
Christina Hendricks stepped out of the command corridor in her base duty tunic, collar unpinned, boots laced to the ankle. Blake Lively fell into stride beside her without a sound. Three months of shared air and identical schedules meant they had shed the need for spoken greetings before the morning watch. They walked half a pace apart, an immaculate front of regulation authority for the lenses above, while the silence between their shoulders held the warmth of an unspoken dialogue.
The off-duty gym deck smelled of salt, rubber, and ozone.
In the low-G bay, structural dampening pistons hissed rhythmically against the bulkheads. Katheryn Winnick was strapped into the variable-resistance harness, driving through eccentric deadlift sets against pneumatic load bars. Her golden-blonde braid was pinned tightly around her skull; beads of perspiration caught the red night-lighting across her collarbones and bare shoulders. Each pull was methodical, surgical, executed with the cold economy of a breaching charge.
At the monitoring bench, Annabelle Wallis sat with an illuminated biometric slate, scanning live telemetry feeds from the crew’s dermal patches. Her white sleeves were rolled to the elbows, her low ponytail neat despite the hour.
Katheryn completed her eighth rep, held the lockout for a three-count, and eased the bar back into the magnetic catches. The pneumatic system exhaled a sharp burst of gas.
"Morning, Captain," Katheryn said, breathing evenly through her nose as she wiped her throat with a rough towel. Her steel-blue eyes took in Christina, then Blake, missing nothing. "You're five minutes ahead of shift handover."
"Insomnia runs the ship, Commander," Christina replied, leaning slightly against the guide rail. "How does the frame hold?"
"Forty tons across the tendon groups this week," Katheryn said. She unbuckled her ankle restraints with swift, practiced snaps. "The 0.12 burn saves us bone mass, but the spine forgets real weight if you let it drift. The strike team is on double resistance until turnover."
Annabelle tapped her slate, not looking up from the scrolling charts. "Nineteen resting pulse rates elevated by two beats across the sleep block. Not pathology. Confinement drift. The body knows it lives in a tube, no matter how clean the air scrubs." She looked up, her gaze steady and clinically clear. "I’m reviewing the hydroponics cycle at 0530. The greens are throwing higher ethylene."
"Keep it inside the secondary loop," Blake said, her tone level and precise. "Serenay has stack three open for harmonic diagnostics until 0630. We don’t want ventilation cross-bleed during valve testing."
"Logged," Annabelle said.
Christina nodded once, a crisp acknowledgment, and turned back toward the transit corridor. Blake pivoted with her, their boots falling into an identical cadence on the deck grating. The cameras followed them with minute mechanical twitches, tracking the gray-and-navy tunics through the junctions like automated sentries guarding an empty vault.
They entered the secondary hydroponics loop.
Here, the red lighting gave way to the pale emerald glow of nutrient misting bays. Rows of genetically tailored legumes and dwarf brassica climbed curved vertical bulkheads under soft, oscillating LEDs. The air was rich, thick with the wet loam smell of accelerated roots and circulating condensation. It was the only compartment on the nine-hundred-meter vessel that smelled of dirt instead of copper and dry nitrogen.
Karen Gillan was kneeling near the drainage junction of biome two, her red combat braid slung over one shoulder, a diagnostic wrench balanced across her knees. She was inspecting a rotary misting valve, her uniform sleeves pushed past her elbows.
"Valve four is weeping," Karen reported as they approached, her voice quiet in the humid calm. "Half a milliliter a minute into the sump. Nothing critical, but the seal’s dry."
"Did you requisition a replacement gasket?" Blake asked.
"Kat’s printer queue is twenty deep for reactor shims," Karen said with a wry, faint tilt of her mouth. "I can lap the seat with emery cloth and call it tight until the noon cycle. We Scottish don’t throw parts away until they’ve died twice."
"Make it hold," Christina told her, the corner of her own mouth softening for a brief fraction of a second. "And don't let Dennings catch you borrowing her abrasive paper."
"Already borrowed it, Captain. Possession is ten-tenths of shipboard law."
Christina left her to the dripping manifold. She and Blake moved toward the hatch to Sub-deck 2, their path tracing the spine of the vessel where the titanium primary frames met the composite skin. The hum of the fusion-antimatter core vibrated through the floorplates, a deep, steady bass note that vibrated behind their ribs.
As they reached the auxiliary telemetry hub hatch, Blake pulled her command slate from her belt and keyed the overnight summary. The blue display washed over her sharp features, highlighting the clean line of her jaw and the cool focus in her eyes.
"Shift package from the survey watch," Blake murmured, keeping her voice pitched strictly below the acoustic threshold of the corridor microphone three meters away. "Yeonwoo and Amy closed out at 0431. Four hundred sixty-two stars cataloged, one amber detection flagged on a binary residual. Clean sign-off."
"Any anomalies in the comm traffic?"
Blake’s fingers swept through the telemetry headers. "Nothing on the technical channels. But the station log had a note. A five-minute boundary discussion over the calibration console. Amy leaned in on sector ten. Yeonwoo reminded her of the charter, her wedding photo, and the camera overhead."
Christina slowed her pace, her green eyes scanning the narrow corridor ahead. "And Amy?"
"Called it cabin fever. Reverted to distance immediately. Shift closed nominal." Blake glanced up, her ice-blue eyes locking onto Christina’s. "It’s starting to bite, Christina. Day ninety-one. The walls aren't moving, the food doesn't change, and Earth is five minutes behind whatever we say. People are looking for edges to push against, just to feel something give back."
"Did it compromise the watch?"
"Not by a millihertz," Blake said quietly. "The trace is textbook. They met the standard, logged the star, and laughed it off."
"Then it's cabin fever," Christina said, her voice flat, firm, and layered with executive certainty. "We don't discipline human nature for being human, Blake. Not when it stays inside the lines."
"The lines are narrow."
"They're nine hundred meters long and five meters wide," Christina replied, stopping before the lift riser that led up to the command module. She turned slightly, looking at Blake under the amber wash of the junction. "If we strip away their jokes, their quiet negotiations, and the five-minute spaces where they remind each other who they are, the machine breaks. You can't run twenty-two women across four light-years on pure protocol. Protocol holds the hull together; the rest of it holds their minds."
Blake studied her face for a beat, the shared understanding between them as dense and unshakeable as the shielding trunk beneath their feet. "Daniel's advice?"
"Common sense," Christina said softly. "Daniel knew how steel fatigued under continuous stress. You give it room to expand, or it shears at the rivets."
"Understood," Blake said, her lips curving into a minimal, respectful smile. "Then we let them file it under humor."
"Under humor, and off the log."
Above them, the automated schedule chime chimed once, a clear, low resonant tone that echoed through the ventilation shafts.
Across the decks, the amber and crimson night lighting began its programmed transition. The soft shadows retreated as the overhead LED strips rose through pale cyan to cold, clinical operational blue. The day was beginning on a vessel that had no morning other than the one programmed into its power relays.
Footsteps sounded along the upper catwalks. The day shift was waking. Rations would be heating in the galley dispensers; Serenay would be cycling the magnetic chokes in the drive stacks; Yeonwoo would be reporting for the morning astrogation fix.
Christina pulled her collar straight, securing the gold command insignia against the charcoal weave of her uniform. Blake checked the side-latch of her slate, her posture shifting seamlessly into the crisp, unyielding stance of an Executive Officer preparing to seize the deck.
"Mid-transit trim burn is scheduled for 0815," Blake stated, her voice taking on the sharp, public clarity required for the bridge microphones. "Serenay reports stack three is back online and aligned with the primary thruster gimbal. Delta-v expenditure will be zero point zero four meters per second."
"Then let's take the bridge," Christina said, stepping onto the lift platform. "Let’s see if our stars are still where we left them."
The lift delivered them onto the bridge at 0747, and the deck was already alive. Yeonwoo stood the astrometrics console with Amy at the link station beside her, both displays sunk in cold blue. Natalie Martinez had the helm, hands hovering above the attitude board, and Shailene Woodley worked the life-support bench aft with her env-suit harness half clipped, standard practice for any maneuver that touched the drive.
"Morning fix complete, Captain," Yeonwoo reported. "Three-star lock on Wolf 1061, Gliese 667, and the Doppler center. Residual is one point eight millihertz."
"Ahead of schedule," Amy added. "The stars held position overnight. I found that very considerate of them."
"Pre-burn checklist," Blake said, taking her station at the XO console.
Natalie read it out. "Attitude thrusters pressurized. Gimbal assembly three staged and aligned to the thrust axis within zero point zero two degrees. Rcs loops one and two green."
Christina keyed drive control. "Engineering, bridge. Status for the trim."
Serenay's voice came through with the low rumble of the drive gallery behind it. "Stack three is back online and gimbal-locked. Magnetic chokes are staged at nominal impedance. I'm watching plasma harmonics on the secondary board now. If the core so much as hiccups, I'll sing you a song about it."
"Send me the harmonic plot before ignition, Chief."
"Sending. It's beautiful. I framed it."
Blake glanced at the download. "Harmonics are textbook, Captain. Zero point zero four meters per second, one hundred second burn, single gimbal."
Christina turned to the security station. "Commander Winnick. Shipwide."
Katheryn keyed the announcement from her console, voice pitched flat and carrying. "All hands, this is the Chief Security Officer. Mid-transit trim burn at 0815, one hundred seconds, zero point zero four meters per second. Secure loose kit, strap racks, and stay out of drive access corridors. Station stabilization protocols go active at 0810. Report any unsecured mass to the watch."
The ship acknowledged in the only way it could: the soft percussion of latches throughout the hull, compartment by compartment, like a body settling itself before a held breath.
"Two minutes," Yeonwoo said at 0809.
"Internal stabilization active," Katheryn reported. "All decks report secured. Nineteen of twenty-two stations confirm by voice, three by interlock." She paused. "It's a clean ship today, Captain."
"Then let's spend some money," Christina said. "Helm, take us off the baseline on my mark. XO, call the numbers."
"Mark."
Natalie's hands moved. The gimbal assembly three swung a whisper of a degree, and the ship felt it, a faint lateral shear through the deck plates, then nothing. "Vector offset established. Point zero four meters per second, aligned to the correction solution."
"Plasma feed steady," Serenay called over the channel. "Chokes holding. Core harmonics are asleep."
"Ignition in ten," Natalie said. "Nine. Eight."
The bridge ran itself through the count the way a heart runs through its own beat. On four, the gimbal flared, and the drive note deepened, a bass tone dropping through the floor and up through Christina's boots into her sternum. The 0.12G baseline held beneath it, unchanged, the continuous burn riding underneath the correction like a tide under a ripple.
"Thrust is nominal," Serenay said. "Chamber is clean."
"Forty seconds," Natalie said. "Residual vector closing on solution."
Christina watched the main display. The forward scatter of instrument stars sat exactly where the models said it would, patient, indifferent, a field of cold points with one small red dwarf buried in it, still too faint to see without augmentation. Somewhere ahead of that faint point, a planet carried fluorocarbons and a 4.7-second pulse, and a hundred twelve meters per second of reserve budget stood between this ship and the halfway mark of its life.
"Burn complete. Gimbal stowed." Natalie's hands came off the board. "Vector is inside tolerance by half the margin."
"Confirm the lock," Blake said.
Yeonwoo ran the re-fix, three stars, the splitter, the mirrored traces. Amy watched them agree. The console's tone went flat and satisfied.
"Lock confirmed," Yeonwoo said. "Post-burn residual is one point nine millihertz. We are aimed at the point in space where Proxima Centauri b will be in five years and ten months. I would certify that in writing, but I already have, forty times."
"Log it forty-one," Christina said.
Amy keyed the comm board. "Earth telemetry updated, Captain. One-way light delay is four minutes fifty-five seconds. Round trip is under ten. I've adjusted the batch queue to match." She paused, and the dry edge came back into her voice. "Geneva will receive confirmation of this burn at 0824, minus four minutes and fifty-five seconds of thinking they're watching it live."
"They've always thought that," Blake said.
"That's what makes the paperwork easy."
"Engineering, bridge," Christina said. "Burn critique."
"Flawless," Serenay said. "Peak chamber harmonic deviation was under two percent. If you ever want to insult me, Captain, find a better word than nominal. Nominal is getting boring."
"Compensated," Christina offered.
"I'll take it."
The drive note settled back to its single unchanging register, the 0.12G baseline reclaiming the deck plates, and the ship exhaled. Across nine hundred meters the latches popped open again in their slow percussion, and the day's ordinary work resumed around the maneuver like water closing over a stone.
At 0900 the noon-cycle prep brought the first tray sounds down the mess corridor, and Christina released the second watch pair to rations. She walked the command deck once, the full circuit, past each station, saying little, seeing everything: Natalie's hands idle and ready, Shailene's env-suit harness racked and inspected, Katheryn at the security board with her logger running its patient totals. Amy's wrist-deck synced. Yeonwoo's low braid catching the instrument glow. Twenty-two women distributed through the hull like load-bearing rivets, and not one of them, this morning, out of tolerance.
On the way aft she passed through the mess long enough to take water, and the calendar board caught the corner of her eye. Sixty-one days. The numeral stood fresh and black on the white grid between the dispenser and the recycler, and Kim Se-jeong was at the board with a marker, filling in yesterday's square with a small, careful X.
"Captain." Kim stepped aside, half a salute, half a shrug. "Someone has to mark the days or they all run together."
"Sixty-one," Christina said.
"Sixty-one, and then the floor tilts." Kim capped the marker. "Freya's got a bet on which department notices the weight shift first. Karen says medical, because medical notices everything wrong first."
"Karen's usually right about her own department."
"That's why the bet is rigged." Kim smiled and went aft with her tray, and Christina stood a moment longer at the board. Sixty-one days to turnover, when the drive would swing and the burn would flip from acceleration to deceleration, when down would reverse itself through the whole ship and every routine would have to learn its opposite. Halfway to the rest of their lives, marked in grease pencil where everyone ate.
She took her water forward. The bridge received her back into its crimson-tinged calm, the noon lighting easing, and Blake looked up from the XO console as Christina stopped at the navigation riser.
"Post-burn summary is queued for the Earth packet," Blake said. "Vector, residuals, light delay, all of it nominal. Eight hours of ordinary operations behind one hundred seconds of brilliance."
"That's the job."
"That's the job." Blake came up the riser and took the standing position at Christina's left shoulder, half a step back, the geometry worn into them both. The main display held the forward scatter, and Yeonwoo had layered the augmentation over it, so that now, at the center of the cold field, the small red smolder of Proxima Centauri showed itself for the first time in weeks. A coin of rust-colored light at the end of five years and ten months.
They stood and looked at it. The drive hummed through the deck plates at its unchanging frequency, and the white nodes overhead ticked through their sweep and settled on the two of them, patient as teeth, recording two officers watching the destination. Nothing more. The packet would say nothing more.
"You know what I keep thinking," Blake said quietly. "The trunk taught us nine meters can be ours. But this is ours too, if we decide it is. This view, this riser, this exact hour. Under the lenses, on the record, nominal."
Christina watched the red point burn its faint hole in the dark. She thought of Daniel's letter, and Kim's grease pencil, and the quarter-turn screw she kept folded behind her sternum, and Amy's coin set down on a console table between two uniforms, everyone's and no one's.
"Then it's ours," she said. "Log the hour as nominal."
"Nominal," Blake agreed, and behind them the console tone chimed, soft and satisfied, as the ship fell on toward the small red star at one-tenth of a gravity, precisely, and forever, and exactly where the models said it would be.