Previously...
1) Yoda's story
2) Palpatine's Story
3) Mandalorians
4) Imperial leaders
5) Jedi Council
6) Midichlorians
7) Sifo Dyas
8) Neimoidian Trade Federation
9) The Lost Twenty ala Dooku
10) Qui Gon's defiance
11) Vader's suit
12) Force sense
13) Jedi powers
14) Is the dark side stronger?

Finishing a long-overdue topic with my 6th installment of UNKNOWNS! There are so many things yet to learn.

15) The Universe. Quite a topic I know, but I've put a little thought into it and I have a hard time wrapping my brain around all these planets in this universe we know as "Star Wars". My limited knowledge of space tells me that planets revolve around a star/sun. Planets like Pluto are cold because they are a long way from the sun. Planets have an orbit that keeps them in motion, and they revolve around an axis. Is there such a thing as a planet that does not revolve or orbit? Do all these planets have their own suns, we just don't talk about them? How does a twin sun work anyway? Asteroid fields exist, but they also need a gravity field, correct? I've seen the "poster" of the Star Wars Universe, and it's cool, but confusing to me... they don't all stay in the same place... or are they really different solar systems? I guess this is probably the case and we see the whole thing as a galaxy. I'm no astronomer, but it's a pretty amazing setup.

16) The wheel. Again... a vast topic, but here we go. Why would the Empire go to giant metal walkers? Why not keep with the "floating" destruction that we see in Episode One when the droids land on Naboo? Why not use the Juggernauts with wheels like Episode Three? Why have a droid with wheels pulling a floating cart like on Tatooine in Episode Two? Even a Harrier Jet has wheels for landing. I realize that Helicopters do not, but wheels seem to make sense in a lot of situations. I understand it is "Sci-Fi" so don't yell at me for questioning the technology. Why not put repulsors on R2? They put rockets on him. Why have rolling Mouse droids and walking Gonk droids? I just think it's an unknown quantity in this universe. Are wheels just not cool?

17) Mixed Race. I understand that Tuskens can't mate with humans... but can Jawas? Zabraks? Bothans? Hutts? I haven't seen a Half-Hutt, Half-Human (unless that's what Yarna was), but that doesn't mean it can't happen. I really wonder about those that are close... like the Togruta and Chagrian. Are they related? We know the Bith and Ybith are related. We know the Neimoidians and Duros are related. Are the Zabraks a mating between Devaronian and Human? Some Twi'lek have four lekku, and some Aqualish have sucker hands. What happens if a Twi'lek mates with Nautolan (Kit Fisto and Aayla Secura)? Is this like seeing a Liger or a Mule? or is it like Cats and Dogs living together. On our planet we see people all the time that are mixed race... I'm just curious about the Star Wars Universe.