Astronomy+The+Universe+Goes+Round+and+Round

//**banner by Savanah Hanna**//

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= =//** The Universe Goes Round and Round **//= //** entry of 10-18/19-10 **//

GALAXY (LY)

 * ==Rotation is around Nucleus==
 * ==552 km/s==
 * ==250 million year (galatic year)==

SOLAR SYSTEM (AU)

 * == Solar Systems rotate around the GALAXY ==

PLANTES (AU)



 * ==**Plantes rotate around a STAR**==

EARTH (1 AU) 23' angle

 * =Day=Rotate≈ 24 hours=
 * ==Year=Revolve≈ 365 days==

(Comets and Asterods)

 * ==Moon moves around planets==
 * ==Junk moves around stars==

**BY: SHANNON CAMPBELL**

 * By 250 million years Mia Harris added galatic year..... also I corrected spelling**


 * "Big Bang"**
 * -Universe=matter and energy**
 * -E=Mc*2**
 * -Law of Conservation of Mass/Energy says "Nothing is created of destroyed, only transferred"**
 * -Inflationary Theory= 15 billion years ago the universe came into existence from an infinitely dense point**


 * "Galaxies"**
 * -Force=Gravity=attractive force of all matter**
 * -Galaxies+Clusters form, but is not Homogenius**


 * "Measuring the Universe"**
 * -Milky Way=our universe**
 * -Only one out of Billions with 100,000 light years in Diameter**
 * -(three) Billion of stars**
 * -1 light year= 10 trillion kilometers**
 * -Speed of light = 300,000 kilometers per second**


 * All done by: Pascal Conte**