From their website:
In Cosmic Conflict, 20 new alien races explode onto the galaxy. Players will now shudder at the insidious kindness of the Empath, blink in confusion at the antics of the Lunatic, and howl in outrage as their planets are stolen away by the Claw.
Cosmic Conflict also makes the Cosmos even bigger, adding another player (and attractive black components) to the game. Cosmic Quakes will shake things up, ensuring that no player’s hand is truly safe. And as if that wasn’t enough, Cosmic Conflict introduces a new variant to the game – the hazard deck, which confronts the players with dangerous and amusing events that can crop up at any time.