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Joseph Hennawi
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Euclid telescope expands record‑old quasar sample
5 clusters · 37 sources · last updated
Latest: Euclid telescope discovers oldest known quasar in early universe
The European Space Agency’s Euclid telescope has confirmed a census of 31 high‑redshift quasars (z ≈ 6.6–7.8) from its first 1½ years of the Wide Survey, covering about 3 000 deg². The sample more than doubles the known