Oort Cloud

Introduction
The Oort Cloud also known as The Trans Neptunian Region is The Solar System's outer shell that covers the outermost part of it. The Oort cloud is collection of icy astronomical objects that form a sort of a spherical cloud around The Solar System. 
The Edge of The Solar System
Discovered in 1950 The Oort Cloud is the farthest astronomical object in The Solar System from The Sun, with the nearest point of The Oort Cloud being 2000 Astronomical Units (AU) or 2.992e+11 Kilometers from The Sun! Too put that into perspective, Pluto is only 39.5 Astronomical Units from The Sun. The nearest point of The Oort Cloud is about 51 times further away from The Sun than Pluto! That's not the craziest part however . The Farthest point of The Oort Cloud is estimated at most to be 200,000 Astronomical Units from The Sun! Which means it would take 3.16 Light Years to get from The Sun to outside The Oort Cloud! A light year is the distance traveled going light speed for one Earth Year. That's a really long time! Even three years is a long time to travel by human standards. This means that The Oort cloud in total at highest estimates, is 198,000 Astronomical Units spaced out. That's 99 times larger than the part of The Solar System inside The Oort Cloud! Talk about putting things into perspective. 
Things that make The Oort Cloud
There is estimated to be,within the boundaries of what is The Oort Cloud  about 2 Trillion objects. Some of the ice in fact is as old as The Solar System itself. Scientist Today suspect that the long orbiting comets of our solar system originate from The Oort Cloud. Though this is theoretical due to the fact that it has never been observed to originate from The Oort Cloud.  
Planetesimals
The Oort is believed to contain Planetesimals. Planetesimals are made from Rocks, dust and other things in The Universe. These Planetesimals can be described as being small celestial bodies formed when a planet is being born. The debris of the proto planets is what forms the Planetesimals. Planetesimals are can be anywhere from a good amount of meters to hundreds of Kilometers but are too small to get an exact measurement. 
Conclusion
The Oort shows that there is much more than what meets the eye. When one thinks of The Solar System, they think of The Sun, Mercury, Venus, Earth, The Moons, Mars, The Asteroid Belt, Jupiter, Saturn, Uranus, Neptune, Pluto and sometimes the Kuiper Belt. What they fail to realize is that isn't all the of The Solar System, its not even The Majority of The Solar System, it is actually quite small compared to what the outside , The Oort Cloud. The Oort makes the common mind solar system look like a tic tac amongst Thousands of chess pieces. We must always think to ourselves that, while yes, our thoughts can be big, that there is a wider scope that we might be missing. The Oort cloud is a great example of this, for The Oort cloud isn't thought of much when thinking about The Solar System, but really, it is The Solar System when we account for size differential. Same thing with our thoughts and ideas. we might have a great idea, but have we considered if there are a million ideas that might actually work better? Let us expand our minds and encompass more ideas and concepts and we may find answers to questions we may not have even known we have been looking for. This is how we grow and have grown since we were hunter gatherers in The Ice Age and Stone Age. Expand thy reach and soon, a whole new world might be available to thee that thou hast not even dreamed of seeing.