Collision With Andromeda

The argument had run for three hours. The observation deck smelled of recycled air and burnt coffee from the machine no one had cleaned in a week.

Tanaka stood at the window of the observation deck, back to the room, watching cargo drones drift between the station’s loading bays. The viewport was cold under her fingers. Her thumb traced the pale line on her ring finger where the wedding band used to be. Behind her, voices rose and fell. Okonkwo’s deep baritone. Reyes defending the timeline. Dr. Yusuf from the ethics board, flown in from Geneva to object.

“The extinction data.” Yusuf again. She pushed her glasses up. “It’s not conclusive. Dating methods across these distances — there’s always margin of error. You’re building a doomsday weapon based on what might be coincidence. That’s what I’m saying. That’s the problem.”

“Seventeen planets.” Tanaka did not turn around. “Seventeen planets with complex life. All dead. Sterilized to microbial level. When we dated extinction events…” She paused. “Simultaneous. Fifty-year margin. Four hundred light-years of space.”

“The dating methods…”

“Accurate to within a decade. We checked. Checked again. Sent three separate probes to Gliese 667C alone.” Tanaka turned. Yusuf was younger than she expected. Thirty, maybe. She had never watched the probe footage. “Seventeen worlds. Four hundred light-years apart. All died at the same moment. Not approximately. Not roughly. The exact same moment.”

Yusuf opened her mouth. Closed it.

Okonkwo spoke instead. He had been standing motionless by the wall, arms folded, a cigarette unlit between his fingers. He rolled it slowly back and forth as he talked. “And what if we become the very thing that kills, eh? What if someone uses this weapon not against whatever is out there, but against us? The machete that clears the bush can also clear the village, isn’t it?”

“Then we are the same monsters we always were. At least we will be alive to regret it.”

“That is not a moral argument, this thing you are saying.”

“No. Survival argument.” Tanaka pulled out a chair and sat. Her thumb found the bare ring finger again. “Morality is not why I am here. I am here to make sure humanity exists long enough to argue about morality.”

“Dr. Tanaka.” Yusuf tried again, glasses pushed up once more. “A weapon that tears holes in spacetime itself. Places with no space, no time, no existence. What if it spreads instead of stabilizes…”

“It will not spread.”

“You know theoretical mathematics only. Conditions no human has observed. You are gambling with existence itself, and for what?”

“For survival.” Tanaka stood. “Something out there sterilized seventeen planets. It coordinates over impossible distances. Watches. Waits. Decides which species live or die.” She walked to the door. “I am finished waiting for it to notice us.”

Okonkwo unfolded his arms. The unlit cigarette disappeared into his pocket. “My objections, I want them in the official record.”

“Done.”

Yusuf shook her head. “History will make its judgments on us.”

“History requires someone alive to write it.” Tanaka opened the door. “I will see you at the test.”

A month later, Tanaka stood in a control room full of silence.

Forty-three people. No one was speaking. The device sat three light hours away, a sphere of exotic matter smaller than a grape, suspended in a magnetic cradle.

They had finished final calibrations. Signed off on safety checks. Swallowed their doubts. Okonkwo had avoided her eyes in the corridors for weeks. Yusuf had sent formal objections that Tanaka buried without reading.

Every night, lying awake, thumb tracing the pale line where her ring used to be. Thinking about the probe footage. Empty streets under alien skies. Cities built for bodies that no longer existed. Silence where seventeen civilizations should have been.

“Begin countdown.”

Reyes nodded. “Thirty seconds.” He was tapping his pen against the console, a nervous rhythm. Tap tap tap. “Que Dios nos ayude,” he muttered, so quiet only Tanaka heard.

Okonkwo’s doubts. Yusuf’s ethics. All of it reduced to numbers on a screen.

“Twenty seconds.”

Seventeen planets. Same moment.

“Ten seconds.”

Reyes stopped tapping.

“Five.”

“Four.”

“Three.”

“Two.”

“One.”

Nothing happened.

Nothing happened for three hours while light crawled back across the void. Okonkwo sat alone in the corner, rolling an unlit cigarette between his fingers. Yusuf stood by the door, arms crossed, pushing her glasses up every few minutes though they had not slipped. Reyes had resumed tapping. Tanaka stared at her console. Had been staring for two hours, occasionally reaching out to adjust the display angle by a degree, then adjusting it back.

Then the data arrived.

The screens went black.

Not dark. Not dim. Not the black of space, which was never truly black, always peppered with stars and radiation and the faint warmth of the cosmic microwave background.

This was nothing.

Where the device had been. Where the test platform had been. Where a small piece of empty space had been. A sphere of absolutely nothing. No light. No radiation. No temperature. No gravity. No dark matter. No dark energy. No time.

Nothing.

The instruments returned zeros across every spectrum, every frequency, every parameter. Not low readings. Absence. A hole in existence itself, spherical, absolutely stable, perfectly empty.

Reyes spoke first. The pen clattered from his fingers. “This cannot be right. The numbers, they are not…” He trailed off.

“What?” Tanaka moved to his console.

“The diameter.” He stared at the display. “Three miles. You know what the models said. Maybe four, with variance.”

“And?”

Reyes looked at her.

“One million miles.” He stared at the display. “The void is one million miles across.”

Silence.

One million miles. Larger than the sun. Three hundred thousand times bigger than predicted.