Three teens from a Mars colony detect a strange signal inside comet Helios and launch a secret drone mission that reveals something impossible.
Jupiter hung low and pale in the marbled pink dawn above Mars while Ari, Maja, and Leon drifted through the dim corridors of Ares VII, too wired to sleep. The colony was still quiet, its lights softened for the morning cycle, but their heads were full of one thing: Helios, the comet the observation centre had flagged hours earlier. It was close, bright, and already setting the entire station talking.
What kept the three of them awake was not the comet itself. It was the signal.
Maja had found it first, buried in a sweep of telescope data from her family’s observation dome. At first it looked like noise, then repetition, then something with a pattern too clean to be accidental. Ari ran the numbers through a stripped-down analysis script and went still when the result came back. The pulses weren’t random. They were ordered. Structured. Almost coded.
Leon leaned over the display, his eyes bright with the kind of reckless excitement that usually meant trouble. “If it’s real,” he said, “we don’t wait for someone older to decide what it means. We get closer.”
An hour later, they were in the garage bay, crouched beside a small reconnaissance drone meant for service checks, not comet chases. Ari linked the tablet to the launch cradle. Maja watched the sensor feed flicker across the screen. Leon entered a flight path that threaded the drone through the station’s service pod and out into open space, where Helios was dragging its icy tail across the dark.
The countdown ended.
The drone slipped away from Ares VII and fell toward the comet, its camera feeding back a view that made all three of them forget to breathe. Helios wasn’t a loose smear of ice and dust. It had structure. Sharp lines. Repeating angles. Shapes that looked carved, not formed. The signal sharpened too, each pulse clearer than the last, as if something on the comet had noticed they were listening.
Then lines of text began to assemble across the screen.
Ari stared at the characters as they flickered into place, too fast to read properly, and Maja’s hand froze above the console. Out beyond the drone’s beam, something moved between the ice ridges - not debris, not a shadow, but a shape that seemed to turn toward the camera with a light of its own.
The service capsule shuddered. An alarm flashed red across the tablet. The signal surged once, violently, and a new message slammed onto the screen, clearer than the first, as if whatever was out there had finally decided to speak directly to them.