Of course, as I have said before, homework isn't fun, but it is necessary. I still hate it though...
Today I have English, AP US History, and Math homework. Yay...
I'm not quite sure if you've noticed, but I keep ending my sentence paragraphs with...
So anyway --TEXT MESSAGE!--,ok, now that that's taken care of, I was thinking today about the vast expanses of the Universe (And whether I should capitalise the word Universe) If you lay it out simply, you've got Earth, one rocky chunk of abnormally perfect placement in the Sol system (In Lehman's terms the Solar System, the problem with this title is that there are in fact an endless number of solar systems in the Universe. So I will from now on refer to our solar system as Sol.) As I said, Earth is the ONLY planet perfectly placed (about 93,000,000 miles from Sol (again, for those of you that don't know, solar systems are named after their stars...), because of Sol's relative mass and the distance from Earth that it is located, Earth resides in what we call the Goldilocks Zone, or GZ. This term is used to describe the ideal area for life to exist on any particular planet in any particular system.
The problem with this --TEXT!-- is that only one planet may exist in such a zone in each system; unless (And I'm just guessing here), there were two planets that co-existed on exact opposite sides of the star, which had the exact same mass, and were the exact same distance from the star. Then they could possibly orbit their star without ever being aware of each other. Similar to a solar Eclipse, how Luna (our moon, get your names right people!) essentially blocks out Sol. Only this would be the star blocking out another celestial body (a planet, presumably), which would be MUCH smaller than the star, emitting little to no light reflection. But really, this idea would
almost never function as a logical theory.
After the planets in the system (there are many, in Sol's case, 8), there are the stars themselves. Stars don't fall into a group smaller than a galaxy, but we can make this analogy: If there were a super-massive star that had quadrillions (and yes, that's a number [x*10^15 I believe])(Also, it is key to point out that I don't actually know how many stars there are in the average galaxy) of planets orbiting it, each planet simply not caring about the others, and not colliding due to their tremendous distance, than this would basically represent a galaxy, but in star system form. Anyway, there are many planets orbiting a star, there are certainly a massive number of stars orbiting a galactic core (which is just a huge clump of stars, most of which wouldn't support planets due to the fact that's they're all pretty much right next to each other), so what? What do galaxies orbit? Nobody's exactly sure on that, but I'm willing to guess that there is the PoC somewhere (Point of Creation), which all nebulae and galaxies revolve around, possibly even in varying directions. It is wise to not that moons orbit planets, planets orbit stars exponentially slower, stars orbit cores exponentially slower than that, and if galaxies orbit a PoC, they orbit so slow it may not even be noticeable at all, even over the course of a millennia.
So what have we gathered? moon, planet, star, galaxy, PoC. That equals Universe! Hurray!
Alright, time to do my homework...