To open a wormhole into another galaxy a huge amount of energy is needed. ZPM to go to Atlantis for example. Nevertheless, O'Neill could reach the Asgard home planet. Afterwards the SGC never reached it.

Was there ever a explanation I do not remember?


1 Answer 1


The episode in question is The Fifth Race.

O'Neill ends up interfacing with an Ancient knowledge repository, the kind that downloads a bunch of info directly into his brain and slowly kills him. You see this kind of device later (and O'Neill pulls the same stunt) when they are searching for Atlantis.

Under the influence of the device, he does build some kind of power cell and attach it to the gate system. He does this more or less on instinct, in order to reach the Asgard, who appear in hindsight to be the only race that could help him survive the download. The energy cell burns out after it's single use, so they are unable to reach the Asgard directly again until later in the series (not to mention, they have no other known 8-chevron addresses to experiment with).

Since a couple people have contributed the link in comment now, here's a Wikia entry on the device Jack built. It does source an RPG book for some of it's info, but appears to be canon-worthy nonetheless. The article also points out, as @Edmund Dantes contributed, it is finally repaired to be used again to reach the Asgard - for an alternate Earth, in the episode Point of View.

  • 2
    @Glostas - it more or less looks like he's just putting garbage together (I think it includes staff or zat parts), until he hooks it up and the gate starts going bonkers with it. Nobody really understands what the hell he's doing until it works - not even O'Neill.
    – Radhil
    Nov 10, 2017 at 13:27
  • 18
    I think this is the only true MacGyver that O'Neil does in the series, Carter usually does them. Made me smile whenever the series pulled one out of the hat.
    – Jim
    Nov 10, 2017 at 13:40
  • 9
    Not the same, but, related, is the ascended ancient who created a makeshift one-use Stargate out of household parts like Sam's microwave. This seems to be the kind of thing Ancients Knew How To Do. Nov 10, 2017 at 14:07
  • 6
    @EdmundDantes : Makes me think there should be a unit of scientific/engineering complexity -- the Carter. We need a reference unit, much like the milliHelen is the amount of beauty required to launch one ship... Nov 10, 2017 at 14:48
  • 5
    @EricTowers One Carter is the amount of science required to blow up a star? This could actually work for some video games with superweapons.
    – Rob Rose
    Nov 10, 2017 at 19:48

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.