During my 2nd playthrough I suddenly started thinking about it. When you first see Dark Samus you can see (or hear) he/she/it opening a portal to Dark Aether. That explains why the fog disappears. But how did he/she/it do it? Dark energy is required to open portals and DS' weaponry consists of Phazon beams and missiles. Could Phazon beam have opened the portal? Or does DS have hidden weapon systems?
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