On occasion I write poetry!
I'm fascinated by the fact that just because our Solar System looks a certain way right now, doesn't mean things were the same all throughout its history. It's also amazing how in the past few decades of space science, researchers have noticed peculiar little incongruities about our planetary neighborhood, and from them have begun to tease out pieces of an incredible story--tales of wild planetary migrations, moon systems built from the rubble of an earlier satellite catastrophe, and episodes of intense bolide bombardment. It makes our present-day Solar System seem completely tame in comparison. I'm excited to see what other stories we can uncover as we learn more about our little spot of space.
Neptune's moon Triton is a definite oddball in its system. It's the largest Neptunian moon by far, looks completely unlike the others, and has a really unusual retrograde orbit. From this and other bits of evidence, most scientists have reached the consensus that Triton is probably a Kuiper Belt object that was gravitationally captured by Neptune when that planet moved outward during aforementioned planetary migration episode. However, in order for this to work, Triton would have had to have originally been part of a binary system, and the capturing interaction would have to involve its companion being flung away to who-knows-where.
It's a rather poignant story when you think about it--somewhere out there is a missing twin, wandering the void alone after an unfortunate encounter with a big blue bully. Is there any way to figure out if a given object is Triton's missing companion? Makes you wonder if we'll ever happen upon it someday.
If we do, we should tell Triton.





