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Enormous Galaxy Clusters Found to be 1.3 Billion Light-Years Wide, Deemed to be The Largest Known StructureEnormous Galaxy Clusters Found to be 1.3 Billion Light-Years Wide, Deemed to be The Largest Known Structure In a monumental ...
Located approximately 27,000 light-years (one light year equals approximately nine trillion kilometres) from Earth — relatively close when it comes to galactic black holes — Sag A* has an estimated ...
In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...
A Milky Way collision with a supermassive black hole might be closer than we thought. Hidden deep in the Large Magellanic ...
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