Scientists close to solving mystery of how universe's giant galaxies formed

‘Cosmic collisions’ 12bn years ago could be key to understanding formation, say researchers

Galaxies crashing together 12bn years ago could have caused the universe’s biggest galaxies to form, according to research.

A study by astronomers at the University of Southampton is hoping to solve what they are calling an “intergalactic mystery” of how elliptical galaxies were created.

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