Vana

Description
A large rock planet, Vana is covered in prodigious amounts of dry ice, leaving only thin traces of gas for its atmosphere. Uranium deposits drew Batarian miners to Vana long ago, and when that was exhausted, they moved on to its magnesium. The Reapers have exterminated the colony here, punching holes in the domed cities and leaving its occupants to asphyxiate.