User blog comment:Stabber ApSig/Mass Relays Gone, ME3 ending/@comment-76.178.25.200-20120311031854/@comment-90.198.236.38-20120311194736

@ above, the relays didn't explode as they did in Arrival, meaning the star systems weren't destroyed. You can see this since the Normandy crashes on a planet which would of been destroyed otherwise.