In the last episode of Stargate SG-1, the Asgard gift humans with all their knowledge and fit key systems onto the human ship Odyssey.

One of those key systems was an advanced beam weapon capable of penetrating Ori ship shields and destroying the ship in 3-4 shots.

advanced beam weapon in action

However, Asgard are never shown using such weapons in the SG-1 episodes and the weapons the Asgard do use are shown as ineffective against the Ori ships.


Why don't the Asgard use this advanced beam weapon?


While I couldn't find anything to specifically spell this out, the two episodes regarding these weapons (SG-1: "Unending") (Atlantis: "Be All My Sins Remember'd") note that these are new technology. The transcript of each are kind of ambiguous, in that they can be interpreted to mean new to the Tauri, but I take it to mean new in all respects.

In that case, the reason they weren't used before is because they were just developed. Likely in response to the Ori threat.


The Asgard may have had the technology but didn't plan on using it. It comes up a couple of times in the series that even their low-level technology is more than a match for the Goa'uld so they didn't need to put beam weapons on their ships to keep them inline. They may even have kept them in reserve knowing that even if the Goa'uld somehow captured an Asgard ship they could immediately out class them again.

Once the war with the Replicators began beam weapons would not help them. No conventional weapon would work against the Replicators.

By the time the Ori show up the Asgard are too slow and ill to build new ships with beam weapons so have to send what they have. Easily the most powerful ships at the fight but still no match for the Ori.

When they gave humans the Asgard core and upgraded the Odyssey they put beam weapons front and centre knowing that they were the best weapons they could provide.


Asgard either didn't develop or installed the beam technology to their warships. On the time of Asgard's demise, they gave their technology including Asgard beam to humanity, which is after the space battle at the supergate.

  • This doesn't really add anything beyond what the currently accepted answer already says. – Radhil Feb 2 '17 at 1:06

I think this is more a matter of politics than technology. That beam weapon is standard Asgard technology. They were reluctant to give it to humans for fear it might be dangerous in the wrong hands.

To really understand this, you need to have watched the spinoff show "Stargate: Atlantis". When the first Asgard-human ship shows up to the Atlantis city in the Pegasus galaxy, it's revealed that the Asgard gave humans the advanced engines it would take to travel to another galaxy, but they refused to give them any advanced weapons. This is why all weapons fire you see are from inferior rail guns developed by humans on Earth. (Only reluctantly, when asked, did they allow humans to beam nuclear bombs to attacking Wraith ships.)

Also, remember that the original Asgard-human ship was not even given to humans on purpose. It was a really old ship found crashed on Earth, which is why it originally didn't even have the engines it would take to travel to other galaxies.

The Asgard generally did not want to share technology with humans.

  • 1
    Except that, as the OP notes, there are scenes where the Asgard fire on the Ori and fail. Politics wouldn't stop them from using their own weapons on their own ships. – Maury Markowitz Nov 3 '16 at 13:38

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