What makes constellations?

Constellations are named after a Greek or Roman God. They were made to help sailors find their way. Now they are used to help more people find their way. In this world such help is very useful.

Tuesday, July 1, 2025

Quadrillion Solar Masses

"Move over, Shapley Superstructure; there’s a new champion in town. Astronomers have identified a cosmic filament of matter so vast that it stretches about 1.3 billion light-years – approximately 7.6 sextillion miles – from end to end."https://www.earth.com/news/quipu-new-largest-structure-in-universe-weighs-staggering-200-quadrillion-solar-masses/
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