Ancient type II supernova discovered from universe's first billion years

Using the James Webb Space Telescope (JWST), an international team of astronomers has discovered a new Type II supernova. The newly detected supernova, named SN Eos, exploded when the universe was ...
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Observations of recently detected SN 2024aecx suggest it's a Type IIb supernova

SN 2024aecx and the host galaxy NGC 3521. Credit: arXiv (2025). DOI: 10.48550/arxiv.2505.19831 Astronomers from the Yunnan University in China and other institutions have carried out photometric and ...