It's about twelve different galaxies connected by tails. These tails form because galaxies pull each other together with their gravity. This indicates that galaxies will collide one day.
Thanks to the Hubble Telescope, another 425 bundles of young stars were found in their tails. Each cluster contains an estimated one million stars. Some of these stars are less than ten million years old, so they are called infant stars.
According to NASA, the “Necklace of Pearls” proves that the collision of galaxies is not actually a collision, but rather a merger. No stars are destroyed, but new stars are created.
“It's amazing to find so many small objects in the tails. This tells us a lot about how galaxies form and how they might merge,” said lead researcher Michael Rudrak. “This process creates a new generation of stars that would not otherwise exist.”
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