Part 2 of "Fire up those Nacelles..."

"Surely something is wanting in our conception of the universe. We know positive and negative electricity, north and south magnetism, and why not some extra terrestrial matter related to terrestrial matter, as the source is to the sink. ... Worlds may have formed of this stuff, with element and compounds possessing identical properties with out own, indistinguishable from them until they are brought into each other's vicinity. ... Astronomy, the oldest and most juvenile of the sciences, may still have some surprises in store. May anti-matter be commended to its care! ... Do dreams ever come true?"
-Sir Arthur Schuster, 1898, 34 years before the discovery of antimatter

Link: Why Making Neutral Antimatter is Such a Big Deal