Some of the poor people who was left for dead at primus did prove some resiliance
towards radiation, and manage to live in small groups across the planet. With some
slight inbreed and monkeys as the mainly trade partner and neighbor. These folks
slowly deteriorated towards becoming neanderthals. Many advanced ships and facilities
was left across the planet. And it was not until around year 800 that a large group of neanderthals stumbled upon a ship building facility, but with primitive mind they
could not really understand it. They indeed manage to make a somewhat flyworthy
vessel. After this the word spread fast across the planet and other groups flooded towards the
old planetside dockyard. This was the start of the first and only neanderthal city. As more
and more ships was built, all of the neanderthals manage to work more and more together
in their hunt/search planetwide for old metals and engines to use in their shipbuilding at the harbor. Around 16to 18 years later the once proud survivors of planet primus (now neanderthals) did once agains figure out that their planet was not everything when a young
pilot by mistake thrusted his ship upwards instead of forwards and flew out of the planets atmosphere. He was stunned for atleast 2 hours before realizing that all the rest of his people must know of this aswell. And soon one could notis a small and insicnificate rise of unknown ships flying around planet primus, and it would not be to long before they dared ventureing further.