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Is the universe still expanding?

14 September 2023
cosmology

At https://phys.org/news/2023-09-webb-accuracy-universe-expansion-deepens.html … apparently, the James Webb Space Telescope has confirmed the rate at which the universe is expanding. Not a suprise as the Hubble Constant is a fundamental parameter in the understanding of the evolution and fate of the cosmos. Webb confirms Hubble is the conclusion.

At https://phys.org/news/2023-09-rotating-radio-transients.html … Russian astronomers have observed two new rotating radio transients – see https://doi.org/10.48550/arxiv.2309.00845 … and these appear to be pulsars characterised by sporadic emissions.

At https://phys.org/news/2023-09-mysterious-ultra-high-energy-source-astronomers.html … which refers to an ultra high energy gamma ray outburst at source. Researchers have recorded a new molecular cloud was recently identified in the vicinity of the gamma ray source. See also https://doi.org/10.48550/arxiv.2309.00089

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