Scientists accidentally discovered a giant ring-shaped cosmic megastructure that challenges our understanding of the Universe

Scientists accidentally discovered a giant ring-shaped cosmic megastructure that challenges our understanding of the Universe

Euclid's view of globular cluster NGC 6397European Space Agency/Euclid Consortium/NASA; image processing by J.-C. Cuillandre, G. Anselmi <ul><li>Scientists have discovered a giant ring-shaped struct… [+2382 chars]

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