Using data from the Hubble Frontier Fields program, a team of astronomers has produced a study that indicates how globular clusters could be the remnants of dwarf galaxies from the early Universe.
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In a patch of sky 3.5 billion light-years away there are hazy elliptical galaxies, colorful spirals, blue arcs and distorted shapes seen clumping together. It’s the result of a vast cosmic collision that took place over the course of 350 million years. The mess is a treasure trove of information for astronomers, allowing them to […]