User blog comment:Kaloneous/Mass Effect 3 Ending DLC Denied and PAX/@comment-4043223-20120323231035/@comment-1221773-20120325054309

I never bought that argument. If BioWare set it up so that we can save Earth, why would they negate that by seemingly destroying all of Sol with the mass relay? That can't be an intended consequence. I think it's possible that destroying a relay like in Arrival is a different matter than how the Crucible destroys them. The Crucible might deactivate or render harmless the most volatile processes of the relays, so that when they explode it's not much worse than when a dreadnought buys the farm, i.e. a relatively small explosion that doesn't affect Earth.

Also, the control endings don't show the relays exploding for whatever reason.