This is the headline at https://www.sciencedaily.com/releases/2024/12/241220133038.htm … so it can’t be pushing the universe apart. Whether that is lumpy or not. This is acording to a group of researchers looking to solve why and how the universe is expanding. Dark energy was invented to explain unknown physics which they thought might be going on even though it is problematical. Beset by its own batch of problems. The team of physicists at the University of Canterbury in Christchurch, New Zealand, are challenging the mainstream narrative by re-analysing supernova light curves. They say the model of cosmic expansion doesn’t need dark energy because the differences in stretching light aren’t the result of an accleration of the universe but are a consequence of how time and distance is calibrated. According to Professor David Witshire, dark energy is a misidentification of variations in the kinetic energy of expansion. Sobering.
The research is published in the Monthly Notices of the Royal Astronomical Society Letters. The universe, it says, contains a complex web of galaxy clusters in sheets and filaments that surround and thread vast empty voids. See https://doi.org/10.1093/mnras/stae2437 …
At https://www.sciencedaily.com/releases/2024/12/241213140634.htm … we are back to the gamma ray flare from a supermassive black hole. It, or rather, was, emitting photons billions of times more energetic than visible light. It was tens of millions times larger, or more energetic, than the event horizon surrounding the black hole. The flare lasted around 3 days.
Gamma rays have the most energy of any wavelength in the electromagnetic spectrum, we are told.
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