M5S-224

M5S-224 is a planet in the Pegasus galaxy. Its Stargate is located among a series of pillars in an area filled with perpetual fog, which contains enough energy to potentially connect the Stargate to the Milky Way galaxy if the control crystal from Atlantis is installed in its DHD.

Unknown to visitors, however, the "fog" actually consists of sentient lifeforms, and each activation of the Stargate destroys millions of them with the unstable vortex.