CPM 0618 is a black hole, which appears in the game, Universal Rule.
[No image is available.]
Universal Rule Planet Abilities Edit
|Text||At the start of your turn, destroy this planet unless you pay 1 credit.|
|Text||At the start of your turn, destroy the cheapest planet in the universe.|
|Notes||In case of a tie, you choose which planet to destroy.
This includes your own planets, including this one.
Although there is nothing actually there, this planet can be attacked (and downgraded or destroyed) like any other planet.