Check out this galactic merger captured by the Hubble Space Telescope.
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The photo shows a galaxy known as NGC 1487, located 30 million light-years away from Earth, but rather than viewing it as an object, NASA said it can be thought of as an "event."
"Here, we are witnessing two or more galaxies in the act of merging together to form a single new galaxy. Each galaxy has lost almost all traces of its original appearance, as stars and gas have been thrown by gravity in an elaborate cosmic whirl," a NASA blog post explained.
The violence of the merging process makes it difficult to determine how many galaxies are a part of the event -- or their individual characteristics. NASA said the yellow and red stars seen on the outskirts of the galaxy are older, while the bright blue stars in the center are likely the result of the galactic merger.