Why do galaxies have different shapes? – AlKhaleej Today

If you look up at the night sky, you can see the stars of hundreds of billions of galaxies. Some galaxies are swirling blue disks like our own Milky Way, others are red spheres or misshapen, lumpy mess, or something in between. Why the different configurations? It turns out that the shape of a galaxy tells something about the events in that galaxys ultra-long life. At the basic level, there are two classifications for galaxy shapes: disk-shaped and elliptical. A disk galaxy, also called a spiral…

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