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Astronomy Picture of the Day - Dark Matter in a Simulated Universe
NASA ^ | 20 Oct, 2024 | Illustration Credit & Copyright: Tom Abel & Ralf Kaehler (KIPAC, SLAC), AMNH

Posted on 10/20/2024 1:01:17 PM PDT by MtnClimber

Explanation: Is our universe haunted? It might look that way on this dark matter map. The gravity of unseen dark matter is the leading explanation for why galaxies rotate so fast, why galaxies orbit clusters so fast, why gravitational lenses so strongly deflect light, and why visible matter is distributed as it is both in the local universe and on the cosmic microwave background. The featured image from the American Museum of Natural History's Hayden Planetarium Space Show Dark Universe highlights one example of how pervasive dark matter might haunt our universe. In this frame from a detailed computer simulation, complex filaments of dark matter, shown in black, are strewn about the universe like spider webs, while the relatively rare clumps of familiar baryonic matter are colored orange. These simulations are good statistical matches to astronomical observations. In what is perhaps a scarier turn of events, dark matter -- although quite strange and in an unknown form -- is no longer thought to be the strangest source of gravity in the universe. That honor now falls to dark energy, a more uniform source of repulsive gravity that seems to now dominate the expansion of the entire universe.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; nasa
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To: doorgunner69

“The science is settled but they cannot even explain what dark matter is.”

I follow this a little. In regard to cosmology I don’t get the sense the physicists believe everything is settled.

There has been this huge divide over string theory with the mainstream academics still trying to push variations of the string theory with other physicists saying that it has been a decades long wild goose chase.

These guys are just scratching the surface. A few of them will say that and then others’ ego’s won’t let them say it.


21 posted on 10/20/2024 3:22:51 PM PDT by plain talk
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To: Excuse_My_Bellicosity

Ditto. We know doctors that think outside the box about Covid were/are blackballed.


22 posted on 10/20/2024 3:27:56 PM PDT by EVO X ( )
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To: wildcard_redneck

Shush. They now call pure conjecture “science”. Do not argue with your PhDed masters. You know. The same people who said that planets were a very rare occurance only 60 years ago.


23 posted on 10/20/2024 3:57:27 PM PDT by Seruzawa ("The Political left is the Garden of Eden of incompetence" - Marx the Smarter (Groucho))
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To: doorgunner69

Nor can they detect it. But it is necessary or else all their big PhDs are so much dog spit. So you are going to have your funding cut off unless you bow to the dogma. Much like the Popes did for centuries. Except they cut off your head instead of your funding. Their paychecks and prestige are at stake and they will destroy anyone who threatens it.


24 posted on 10/20/2024 4:03:01 PM PDT by Seruzawa ("The Political left is the Garden of Eden of incompetence" - Marx the Smarter (Groucho))
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To: Excuse_My_Bellicosity

They don’t know what it is, that’s why they call it dark. It’s measurable, though. One of the possibilities is that we just don’t understand how gravity works over long distances, which they call MOND (modified Newtonian dynamics). So they admit that our knowledge of gravity may be incomplete.


25 posted on 10/20/2024 5:02:11 PM PDT by Telepathic Intruder
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To: Excuse_My_Bellicosity
Still running with the dark-matter scam because they can’t admit that they don’t know enough about gravity yet.

What I think too.

26 posted on 10/20/2024 5:07:07 PM PDT by MtnClimber (For photos of scenery and wildlife, click on my screen name for my FR home page. More photos added.)
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To: Seruzawa
. Reminds me of the old cartoon with a blackboard full of diagrams or equation showing a deivation.


27 posted on 10/20/2024 5:55:56 PM PDT by doorgunner69 (I don't know what he said at the end of that sentence. i don't think he knows what he said either)
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