Well, that explains Fringe!
Go ahead and end it now before Abrams can ruin it, like he did Lost.
Allied international boffins are exceedingly chuffed this week to announce a recordbreaking reverse-alchemy triumph: gold has been turned into extra hefty nega-helium antimatter by using an enormously powerful atom smasher. The particle-punisher in question was not our old friend the Large Hadron Collider but rather the …
Wait a second. They say that creation of anti-alpha by cosmic rays is impossible, and therefore they want to look for anti-alpha in orbit because, if they find it, it's evidence of antimatter that doesn't come from cosmic rays. So far, so good.
But they were also able to find anti-alpha after a particle accelerator experiment. Last I heard, the energy levels reached by particle accelerators are still lower than what you can get in cosmic rays - this is what gets frequently stated in order to debunk claims that the LHC could destroy Earth. If particle accelerators can create anti-alpha, then wouldn't cosmic rays also be able to create anti-alpha, which would moot the space experiment?
They collided huge numbers of particles head-on and got a very few anti-helium nuclei. At a guess, the likely production rate by random collisions of two cosmic rays is so low that they can ignore it. And if a cosmic ray hits anything else, any antimatter produced is likely to promptly annihilate.
Back in 1956, someone did a poem about Edward Teller landing on a planet where Edward Anti-Teller lived.
Then shouting gladly o'er the sands
Met two who in their alien ways
Were like as lentils, their right hands
Clasped ... and the rest was gamma rays
http://komplexify.com/math/harmony/PerilsOfModernLiving.html
If there are anti-matter galaxies out there, then shouldn't some of the galactic collisions that we see such pretty pictures involve "+" and "-" versions - and therefore be a bit more spectacular than they appear to be? I am assuming, of course that when galaxies collide there are actual collisions, not just intricate orbital dances.
"... finding even one would strongly suggest ... a distant region of the universe dominated by antimatter" sounds very much like Alfvèn-Klein cosmology.
Does this mean that it is finally becoming possible to consider some of the ideas that Hannes Alfvèn suggested half a century ago without the risk of dismissive sneers, opprobrium and ridicule from every corner?
You claim "...the AMS requires more power than any feasible satellite or spacecraft built here on Earth could possibly yield. "
A wee bit 'o checking would have turned up the fact the the old Soviet RORSATs, with their onboard nuclear reactors, not only were highly effective at inducing cataplexy in Greenpeaceniks, but generated more than 2kW of electrical power, and so would have been able to supply the 2kW power need of the AMS-02.
Otherwise, congrats on the creative language use!