Universe
A young galaxy cluster observed in the early universe is surprisingly hot and abundant in gas, challenging scientists' models of how such structures evolve. Named SPT2349-56, the cluster's intracluster gas reaches temperatures of several tens of millions of degrees, far exceeding predictions. Researchers suggest active galaxies within it may be accelerating the heating process.
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A new study from Yonsei University suggests the universe's expansion has begun slowing down, potentially due to biases in supernova measurements. Researchers argue this indicates dark energy is weakening over time. However, other scientists express skepticism about the findings.
October 30, 2025 07:34