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Carter explains how alternate SG-1 traveled from PX7-455 to this universe


PX7-455 was the planet the black BDU clad SG-1 team claimed to have gated from before arriving at the SGC. They neglected to mention it was PX7-455 in their own alternate reality.


  • Names and Designations: PX7-455
  • Number of Suns: Unknown
  • Number of Moons: Unknown
  • Source of Address: Alternate SG-1
  • Introduced in Episode: 9.13 "Ripple Effect"
  • Earth Cultural/Technological Equivalent: Unknown
  • Main Interest: Investigation/Location in relation to Kallana black hole and Earth
  • Influenced/Dominated by: former Goa'uld stronghold of Amaterasu (at least in an alternate reality), not being visited by Priors
  • History of Stargate: Unknown

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PX7-455 was the planet an alternate SG-1 appeared to have gated from before arriving at the SGC. In truth they apparently gated from this world in their own reality, sending some type of Asgard pulse weapon through the wormhole ahead of them.

PX7-455 was between the black hole where Kallana once was, and Earth, so the pulse took advantage of the singularity's presence and jumped the alternate SG-1 team into this universe's reality. The team, dressed in black BDUs, arrived at the SGC. Only after their different mission was revealed, and the SG-1 from this universe arrived was the incongruity discovered.

SG-1 visited the PX7-455 of this universe to investigate the alternate team's claims, but no one there had ever seen the SG-1 team members before. It is unclear if the world was ruled by Amaterasu in this universe. The alternate SG-1 team provided some information about the inroads the Priors of the Ori were making in this region from intelligence gained from Selmak, but it is uncertain if that information would be true in this reality (among other things, Selmak in this reality is deceased), or even if the team was being truthful when debriefing to General Landry.

The SG-1 purposefully entered this universe to retrieve the ZPM from this universe, as theirs was depleted, and they were in danger of being defeated by the Ori. Their efforts also had the side effect of allowing an opening for several teams (often SG-1) to gate into this universe's Earth from other planets whose wormholes intersected the Kallana singularity.

The SG-1 of this universe eventually figured out the Black BDU team's plans and thwarted them. They were able to return the black BDU clad team (and the other alternates) back to their reality by sending a similar Asgard weapon blast through a wormhole dialed to PX7-455.


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--Aurora 17:44, 15 May 2006 (PDT)