Introduction and meaning of the universe and galaxies.

Introduction and meaning of the universe and galaxies. 

Galaxy (Galaxy). 
The one with a universe with every system that is smaller than the universe and natural phenomena of all kinds. System with a large reserve of the universe. Clusters of galaxies (cluster of galaxies) which galaxies assemble by thousands of large and small galaxies. And composed of various substances in the Galaxy. Large structures inferior to the other cluster galaxies is. Galaxy species such as the Milky Way Galaxy, the sun and our solar system are a member. 
Galaxy is the kingdom, or hundreds of thousands of millions of stars. Combinations of gravity between all matter within galaxies with little black section, a superconductor. (supermassive black hole) at the core of the Galaxy. Galaxies were formed after the big bang, about 1,000 million years old, the galaxies with stellar enormous. And intermediary between stars (interstellar medium) galaxies, which are key solar system, including a member. The Milky Way Galaxy And there are other galaxies that we can see with the naked eye in the skies of the country include the Andromeda Galaxy Granada. Which is in the constellation Andromeda Ann. 
We can observe the Milky Way in the night sky balanced. No bright moonlight and light interference. It is observed as a white faded hibiscus wide and about 15 degrees across the long way around the sky in the direction of the constellation Scorpius (currently up to a maximum to the south the elevation angle of about 50 degrees) constellation Yitzhak bow (the part. the Milky Way is clearly visible and very beautiful Aquila. And Cygnus) 
Type galaxies (species of galaxy). 
One. Galaxie normal (regulaxy galaxy). 
. 2 Galaxy shapeless (irregulaxy galaxy).