Complex sentence: During the 2190s, 50 colony ships were launched from the EEC's Ceres base, among them the "Snowball 9", which carried the first colonists for planet Eden on the Eridani A system.
Split into simpler sentences: During the 2190s, fifty colony ships were launched from the EEC's Ceres base, among them the "Snowball 9". It carried the first colonists for planet Eden on the Eridani A system.