From the WizKids STAW site:
For Star Trek: Attack Wing, we will be adding a new game mechanic to the
events: Sector Conditions. Sector Conditions provide special rules
that are in play during the game that represent different spatial
anomalies and other environmental effects. The three Sector Condition
for the WizKids Open that will be in play during different rounds (see
Tournament Rules for more information) are: Nebula, Energy Flux &
Meteor Shower. These Sector Conditions can be found below—please feel
free to add them to your next Star Trek: Attack Wing game!
I think these
Sector Conditions are a great addition to the game
and really help distinguish it from other Flightpath games. I recently
had a chance to play in a high point STAW game on a 4 x 6 board and I'm
looking forward to adding this spatial anomalies to the next game!