10 Most Powerful Weapons In The Stargate Universe

Project Arcturus was an attempt to extract zero-point energy from the Ancients' own universe. Had it worked, it would have created a replacement for Zero Point Modules, which were the Ancients' primary energy source. Ultimately, the project failed, but Rodney McKay gave it another shot when the Atlantis expedition found it.

McKay estimated that Project Arcturus' ability to produce energy was astronomical in comparison to ZPMs, which were already incredibly powerful sources of energy. By his estimation, Project Arcturus was the equivalent of a dozen ZPMs at only 50%... but only if he could get it to work.

Project Arcturus was potentially equivalent to the power of the entire universe, and that made it incredibly dangerous. McKay disabled its containment field and nearly died in the ensuing explosion, which destroyed "five-sixths" of the solar system, up to and including the sun.

Another version of the technology was installed at the Doranda outpost, and it didn't work properly either. It managed to destroy a fleet of Hive ships during the Ancients' war with the Wraith, but it also destroyed the planet's surface, thanks to its continuous and random release of energy.