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Posted on 04/23/2026 12:50:35 PM PDT by MtnClimber
Explanation: This is a map of the universe. The Dark Energy Spectroscopic Instrument (DESI) at Kitt Peak National Observatory, Arizona, has finished its five-year survey. It observed more than 47 million galaxies and quasars and created a 3D map centered on the Earth. Today's featured image shows a thin slice of these data: the black gaps indicate where our Galaxy obscures distant objects. The feathery web in the inset shows the large scale structure of the universe. Light of the most distant galaxies shown here travelled for 11 billion years to reach the Earth. Galaxies cluster throughout cosmic history under the competing influences of gravity and dark energy, responsible for the accelerated expansion of the universe. Analysis of early DESI results hinted at the possibility that dark energy, described as a cosmological constant by Albert Einstein, may not be constant after all. But we still have to wait for the analysis of the now complete dataset. The nature of dark energy is the biggest mystery of cosmology.
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For more detail go to the link and click on the image for a high definition image. You can then move the magnifying glass cursor then click to zoom in and click again to zoom out. When zoomed in you can scan by moving the side bars on the bottom and right side of the image.
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It would be interesting to see in 3D and also to see the predicted rate of expansion.
“ The nature of dark energy is the biggest mystery of cosmology.”
Dark matter was invented/created to solve the asymmetry between matter and anti-matter in the universe and make the shoe fit.
What is the proof that anti-matter actually exists? and that its contact with matter would result in their mutual annihilation? Theories are good, but without proof they’re just guesses.
Cool photo.
I find interesting that the stringy ripple patterns in the Universe, the water at the beach, and the slab of marble, look like variations on the same phenomenon ... albeit at vastly different scales.
Dark matter was invented as a means to justify grant applications without admitting how little we know.
“Dark matter was invented as a means to justify grant applications without admitting how little we know.”
Since the turn of the millennium, the search for particle dark matter has been dominated by the hypothesis of weakly interacting massive particles (WIMPs), driven by hypothesized connections to supersymmetry. Experimental efforts were characterized by a rapid increase in sensitivity using liquid xenon detectors, including XENON, LUX, PandaX, and LUX-ZEPLIN. Despite pushing interaction limits down by orders of magnitude, these direct detection experiments all reported null results for WIMPs across the standard GeV–TeV mass range.[54][55] As of late 2025, the LZ experiment had excluded WIMP cross-sections above 9 GeV/c2 and reported the first detection of boron-8 solar neutrinos via coherent elastic neutrino-nucleus scattering in a dark matter detector; this marks the experimental entry into the neutrino floor “fog,” an irreducible background of neutrino noise that complicates future WIMP searches.[56] Concurrently, the failure of the Large Hadron Collider to detect supersymmetric particles has constrained the theoretical parameter space for WIMPs.[57] These constraints have shifted significant focus toward alternative candidates such as axions. The Axion Dark Matter Experiment achieved sensitivity to the plausible DFSZ axion model in the micro-electronvolt range by the early 2020s
Wiki
And some say we’re alone in the universe? I don’t think so….
In my travels through Florida today, I came across four or five luscious-looking white females maybe in their 30’s or so. I spoke with two of them. All of them were actively seeking that elusive dark matter.
I’m not an Astronomer, but love to watch videos on the subject on the internet. Fascinating subject!
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