One light-day outside Galáré system.
The long plume of the fusion torch flickered out, and the great ship began to rotate slowly, end over end, bringing the foreshield once more into alignment with its direction of travel. The wide radiator vanes of the drive module glowed a bright cherry-red from the torch’s waste heat.
Extropy Rising, the eighth sleeper-ship of the Deep Star program, had finished decelerating into the Galáré system.
In obedience to the programming set up before it had left its construction slip in Talentar orbit, the triple-triple computers which controlled the Rising completed the flip, then turned their attention to the next steps in the entry procedure. A centrifugal ring spun up, throwing a sextet of probes outward to safe ignition distance. Sensors, unused since launch, slid out from behind the foreshield and powered up.
As the computers gorged themselves on the influx of new data, ongoing critical paths were adjusted at thousands of decision gates, fine-tuning the remainder of the mission to match the newly revealed local conditions; precise solar spectra, orbital elements, atmospheric composition…
Extensive electromagnetic emissions from the third planet in the log-8 to log-10 bands. That was outside all defined parameters.
Sophont intervention required.