From Science News:
Designed to scan the heavens thousands to billions of light-years beyond the solar system for gamma rays, the Fermi Gamma-ray Space Telescope has also picked up a shocking vibe from Earth. During its first 14 months of operation, the flying observatory has detected 17 gamma-ray flashes associated with terrestrial storms — and some of those flashes have contained a surprising signature of antimatter.
What is Antimatter? I'm not really sure. But according to Wikipedia,
In particle physics, antimatter is the extension of the concept of the antiparticle to matter, where antimatter is composed of antiparticles in the same way that normal matter is composed of particles. For example, an antielectron (a positron, an electron with a positive charge) and an antiproton (a proton with a negative charge) could form an antihydrogen atom in the same way that an electron and a proton form a normal matter hydrogen atom.
It reminds me of the music scale, where an A# (A-sharp) is also a Bb (B-flat), except antimatter is much more complicated.
[SIGNATURE OF ANTIMATTER DETECTED IN LIGHTNING]
[Antimatter]
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