"Oh, Dr. Jackson is gonna die when he sees this."
"What, again?"
Cameron Balinsky and Dave Dixon[src]

P3X-666 is a planet in the Milky Way galaxy. When the Tau'ri arrived here for exploration, Ancient ruins were all that remained.


The SGC teams engaging in a fierce gunfight against rival Jaffa troops. From the Season 7 episode, "Heroes Part 2".

The Goa'uld ambushed SG-13 and SG-3 here. SG-1, SG-5 and a medical team were sent to the planet to extract the SG teams, with the SG teams getting into an intense firefight with Jaffa ground troops.

Unfortunately, the battle wasn't without fatalities as Dr. Janet Fraiser, the SGC's Chief Medical Officer died after hit being by a blast from a Goa'uld staff weapon, leaving her SGC colleagues grief-stricken and devastated over her death. It was also on this planet that Colonel Jack O'Neill took a staff weapon blast to the chest but ultimately survived thanks to the Vest insert he was wearing which reduced the fatality of the blast, saving Jack's life. (SG1: "Heroes, Part 1", "Heroes, Part 2")

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