Black Holes are a special type of celestial body. They can be used to gain Dark Matter (a rare resource) via DarkReactor. However, all planets orbiting black holes will never be earth-likes, and no solar energy can be generated from solar panels when orbiting black holes.
![](http://static.miraheze.org/wasteofspacewiki/thumb/b/ba/BlackHole.png/200px-BlackHole.png)
Black Holes are one of the best places to hunt aliens, along with Neutron Stars. aliens have a 20% (or 30% im not clearly sure) to spawn every 30 minutes