Events are a new type of card for your Trade Deck. Each Event card has a potentially game changing effect as soon as the card enters the Trade Row. After it has its effect, it immediately gets replaced with the next card in the Trade Deck.
This expansion contains 12 cards: 1 Black Hole, 1 Bombardment, 2 Comets, 1 Galactic Summit, 2 Quasar, 1 Supernova, 2 Trade Missions and 2 Warp Jumps.
Source: The Publisher Website.