Astronomers Use Massive Galaxy Cluster to ‘Peer Back in Time’
Astronomers recently used a giant cluster of galaxies as an X-ray magnifying lens to spot a tiny, star-forming dwarf galaxy for the first time. The team, which was able to “peer back in time” to approximately 9.4 billion years ago, detected the tiny dwarf galaxy, which was experiencing its first, high-energy stages of star formation, […]
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