One of those things I’ve pondered myself over the years. I’m assuming there are all kinds of exotic elements in our universe that are unknown in our neighborhood.
Actually, it's pretty unlikely that there are different elements, or even different compounds. These things generally exist because their energy state is lower than some other combination of the same particles.
It's sort of cute that NASA made a movie about this instead of publishing a paper
It's also cute that the folks who tell us where the heavier elements (I think from Lithium on up.) that we observe here on earth came from, say it was from stars that died a long, LONG, time ago. In other words, the conventional wisdom is that almost everything we observe had its origins outside our solar system.
ML/NJ