Density+In+Our+Universe

=/= =This isn't all about density and we already have a density page. Some one transfer all of this to the appropriate spots (some to astronomy pages and some to density). The spelling and explanations need to be cleaned up. Don't get me wrong Destiny, this is good info, it just needs to be placed elsewhere.= /

= "Big Bang" =


 * -Universe = MATTER and ENEGRY .**
 * E = mc ^2**
 * Matter takes up space and has mass. **
 * Energy does work. **


 * -Law of conservation of mass / energy. Nothing is created or destroyed, only transferred.**
 * -Inflationary theory is that 15 years ago the universe came into existence from an infinitely dense point.**


 * Galaxies **


 * -Forces = Gravity = attractive force of all matters .**
 * -Galaxies & clusters form but it's __NOT__ homogenous. ﻿ **

= Measuring the Universe =


 * -^ Milky Way is our galaxy.**
 * -only one of billions.**
 * -100,000 light years (LY) in diameter.**
 * -billions of stars**
 * -One light year = 10 trillion km.**
 * -speed of light = 300,300 km per second.**

- By. Destiny Bach

//-edited by Savanah Hanna, and illustration is by me too.//