STARS OF THE MILKY WAY GALAXY
The Milky Way galaxy consists of a copios amount of light sources called stars. As a matter of fact, about six thousands stars can be seen only with the naked eye, and in powerful telescopes, one can see at least one hundred billion stars. Stars are flat and rotating disks that shots out two needle thin beams of gas; these beams moves about a quater of the speed of light. The Life of Stars Stars don't just appear out of no where; just like people, stars have a life cycle. All stars are formed from the gravitational pull of dust particles called a nebula or a big cloud of dust. After forming into a nebula, it transforms into a main sequence star. and in this stage they are stable just like the sun. From this satge, it becomes a red giant, an old star. Preceeding this stage, very complicated events in the star's life occur. Depending on it's condition, the star will either become a white dwarf ( eventually this becomes a black dwaf and remains in this condition for the rest of it's life ) or a nova/supernova.
Nova or Supernova A nova or a supernova is an explosion of a red giant whose condition qualifies as unstable. A nova or super is so bright that it can be seen with the naked eye from billions of miles away. After the supernova explodes, it will become a neutron star or accumulate into a black hole. Preceeding this, another nebula is formed, and a star is borned again. Types of Stars
When one goes out in the night, one can observe that some stars are brighter than other. This proves that there are many different types of stars; they are not all the same. Stars vary in color and sized, from giants to dwarfs and from red to blue. Blue giants are the brightess and biggest stars in the sky. If of these stars were as close as the sun is to earth, it would probabely be too bright to even see anything. Big stars in the sky are called giant, and the smaller stars are called dwarf. This is the order of luminosity of stars: blue, green, white, yellow, orange, and yellow. Stars are incredible light sources. Their variations proves the magnificence of outer space. Their presence told wonder. They served as fables of the olden days, and historians used them for myths for their beliefs. It would be hard to imagine a world without stars.
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