This sprinkling of cosmic glitter makes up the galaxy known as ESO 149-3, located some 20 million light-years away from us, as seen in this stunning space wallpaper. It is an example of an irregular galaxy, characterized by its amorphous, undefined shape — a property that sets it apart from its perhaps more photogenic spiral and elliptical relatives. Around one quarter of all galaxies are thought to be irregular-type galaxies.
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