Scale of the Universe - Be Amazed! 4.8 out of 5 based on 429 votes.
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Scale of the Universe - Be Amazed! 

Everyone knows the universe is huge, but most people don't understand how huge it really is. This article will try to show the amazingly massive scale of the universe to you.  It surely is a very humbling experience!

Scale of the Universe

 

Earth - Our Home

Earth seen from Apollo 17
 
This is our Home. All of us live, love, wage wars, spend our entire lifetimes here.
 
 

Earth compared to  smaller Planets in our Solar System

Earth compared to smaller planets
 
 

Earth compared to  larger Planets in our Solar System

Earth compared to larger planets
 
 

Compared to our Sun

Earth compared to the Sun
 
 

Our Sun compared to other Stars

Sun compared to other stars
 
Our Sun is just a tiny speck compared to other stars!
Hard to even make out in the picture with the Sun just 1 pixel wide. Jupiter becomes invisible at this scale.
 
 

Milky Way - Our Galaxy

MilkyWay Galaxy
 
There are 200-400 billion stars in the Milky Way. 
 
The stellar disk of the Milky Way Galaxy is approximately 100,000 light-years  in diameter, and is considered to be, on average, about 1,000 ly thick.
 
Our Milky Way galaxy is small compared to other galaxies. Our neighbouring Andromeda Galaxy has over one trillion stars!
 

The Observable Universe

This is a Hubble Ultra Deep Field image of a small region of the observable universe (equivalent sky area size shown in bottom left corner). 
 
Scale of the Universe Hubble
 
Each spot is a galaxy, consisting of billions of stars.

There are more than 170 billion galaxies in the observable universe.
 
Be Amazed!
 
 

 

 
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