Cassandra and the Unknown World

A seed ship arrived to the planet Eden 20 years ago landing the planet. The robots from that ship then built a colony in there. The spaceship itself carried both egg cells and sperm with it. The egg cells were fertilized. Now, 20 years ago the first class on humans inside that spaceship have reached the age of 16 years. They were brought up and educated by the robots. Now they will leave the spaceship to explore a strange new world.