Axis Of Perdition. Corridors. To Walk the Corridors of Hell. محور تباهی. راهروها. قدم زدن در راهروها از جهنم.
... [Intro speech:] Cygnus X-1 was discovered as an X-ray source 30 years ago This binary system, distant of 2.5 kpc, consists of the O9.7 Iab type supergiant
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