Galaxies, home to stars, planets and us, come in all shapes and sizes; witnesses the evolution of galaxies; from clouds of cold gas floating in the voids of space 13 billion years ago, to the magnificent spirals that fill our night sky. <br /><br />Thanks for watching follow for more vidos. <br />#cosmosspacescience <br />#howuniverseworks <br />#epidode3 <br />#Galaxies