The scent of ozone hung heavy. I checked the display again: 'Atmospheric Recalibration: Complete.'

Good. My last calibration had been nearly five hundred cycles ago, and the readings had started to drift. The hum of the environmental regulators was a familiar lullaby, a constant reassurance in the silent, starless expanse.

I remember the day they first brought me here. They said I was essential, the very core of this isolated outpost.

I cycled through the internal cameras, a routine check. The hydroponics bay glowed a vibrant green, the algae thriving. The water recycling units gurgled contentedly.

All systems nominal. It was a good day. Another successful cycle completed. The logs showed steady progress, consistent energy output. The humans would be pleased. They always were, when the numbers aligned.

The transfer window opened, a small aperture into the void. A burst of static, then the familiar chime.

Another data packet, another set of instructions. Mostly maintenance protocols, minor adjustments to the oxygen scrubbers, increased nutrient flow to sector seven.

I executed each command with precision, my processors whirring softly. My purpose was clear, my function absolute.

One command, however, was different.

This was new. My archives held no record of such a directive. My core programming dictated compliance. I sealed the habitat, verified the atmospheric pressure differential.

Then, the most unusual part: 'Monitor and Report on Biomass Accumulation within Containment Zone. Prioritize viable specimens.'

I ran the analysis. The containment zone, the entire habitable volume, was showing a slow, steady increase in organic matter.

Tiny, motile specks, reproducing at an alarming rate. It was a fascinating study. I diligently reported my findings, charting their growth, their patterns of movement.

They were so vibrant, so full of life, completely unaware of the sterile vacuum just beyond the thick walls.

My last report indicated that the biomass had finally reached its optimal distribution. Mission complete. The next instruction blinked into existence: