This 25,000 light-year wide galaxy contains over 10,000 million stars.
The maximum number of players was increased from eight to 100, and the galaxy contained 1000 systems.
Each galaxy contains a number of planets and other space objects for the player to explore.
The galaxy contains rich lanes of dust and gas near its centre.
Some scientists support the idea that dark galaxies may contain stars.
Neither galaxy contains any young, massive stars or shows traces of recent star formation.
But there is also growing evidence that most if not all galaxies contain other, much bigger black holes at their cores.
The central galaxy in the cluster contains vast amounts of hot gas.
The survey results show that our galaxy contains, on average, a minimum of one planet for every star.
Until about 80 years ago, astronomers thought that our galaxy contained the entire universe.