Chandra and LOFAR detect galaxy cluster 15.5 billion light-years away in Monoceros

Two observatories logged the distant cluster observation on 17 October 2026 alongside three new astronomical survey releases.

Luisa Marconi

Senior Space Correspondent

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Distant galaxy cluster detected by radio telescope AI illustrationhow this picture was made

CAMBRIDGE, USA, Oct. 17, 2026 - NASA's Chandra X-ray Observatory and the LOFAR radio telescope have observed a galaxy cluster located approximately 15.5 billion light-years from Earth, in the constellation Monoceros ^[1]. Space Nugget. A galaxy cluster is the largest gravitationally bound structure known to exist in the universe. They contain hundreds to thousands of individual galaxies, diffuse hot gas, and dark matter.

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NASA's Chandra X-ray Observatory and the LOFAR radio telescope observed a galaxy cluster in the constellation麒麟座 located approximately 15.5 billion light-years from Earth. · sorae 宇宙へのポータルサイト

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