Antimatter is a substance found in our Universe that has both opposite charge and spin to baryonic matter. When meeting baryonic matter, it will explode along with the baryonic matter in a so-called annihilation. If the universe was made up of half-antimatter and half-matter, then they would have all detonated leaving nothing except for radiation behind, so the theory is that either there is a third substance that stops antimatter-matter annihilation, or somehow more matter exists than antimatter.
Properties
Antimatter is usually very small, with antimatter particles being up to 20 orders of magnitude smaller than a normal particle. It is also much less massive. Otherwise, it is identical to baryonic matter if left in a vacuum, and has no special properties, so the existence of antimatter entities is possible.
 Antimatter is part of a series on earlier verses. Basic early verses: |
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| Universe • Hypercluster/Void • Supercluster • Galaxy cluster • Galaxy/Dwarf galaxy • Cluster • Star • Planet • Moon • Asteroid • Continent • Country • State • City • Compound • Atom • Subatomic particle • Quark • Preon • String
for a complete list of verses, please see The Absolute Hierarchy. |
