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Archive for the ‘cosmology’ category: Page 263

Nov 19, 2020

Dark Matter Candidate Could Generate String-Like Entities in Exotic Materials

Posted by in categories: cosmology, mathematics, particle physics, quantum physics

Calculations show how theoretical ‘axionic strings’ could create odd behavior if produced in exotic materials in the lab.

A hypothetical particle that could solve one of the biggest puzzles in cosmology just got a little less mysterious. A RIKEN physicist and two colleagues have revealed the mathematical underpinnings that could explain how so-called axions might generate string-like entities that create a strange voltage in lab materials.

Axions were first proposed in the 1970s by physicists studying the theory of quantum chromodynamics, which describes how some elementary particles are held together within the atomic nucleus. The trouble was that this theory predicted some bizarre properties for known particles that are not observed. To fix this, physicists posited a new particle—later dubbed the axion, after a brand of laundry detergent, because it helped clean up a mess in the theory.

Nov 19, 2020

Researchers have succeeded in directly observing the formation and interaction of highly ionized krypton plasma

Posted by in categories: cosmology, particle physics

The last decade has been marked by a series of remarkable discoveries identifying how the universe is composed. It is understood that the mysterious substance dark matter makes up 85% of the matter in the universe. Observable matter in the universe consists of ionized particles. Thus, a profound understanding of ionized matter and its interaction with light, could lead to a deeper understanding of the relationships at play that formed the universe. While ionized matter, or plasma, is relatively easy to generate in the lab, studying it is extremely challenging as methods that can capture ionization states and density are virtually non-existant.

In a new paper published in Light Science & Application, a team of scientists has succeeded in directly observing the formation and interaction of highly ionized krypton plasma using femtosecond coherent ultraviolet light and a novel four-dimensional model.

Nov 19, 2020

Particle Physicists Continue Empty Promises

Posted by in categories: cosmology, finance, particle physics

The CERN in Geneva has become a sink for public money.

At the same time there’s a lack of funding in other research areas, that would be much more urgent!

Continue reading “Particle Physicists Continue Empty Promises” »

Nov 19, 2020

“Phantom Star of the Blue Ring Nebula” –Mystery Solved

Posted by in categories: cosmology, evolution

“We were in the middle of observing one night, with a new spectrograph that we had recently built, when we received a message from our colleagues about a peculiar object composed of a nebulous gas expanding rapidly away from a central star,” said Princeton University astronomer Guðmundur Stefánsson, a member of the team that discovered a mysterious object in 2004 using NASA’s space-based Galaxy Evolution Explorer (GALEX). “How did it form? What are the properties of the central star? We were immediately excited to help solve the mystery!”

A 16-Year-Old Mystery

NASA announced today that it has solved the 16-year-old mystery of the object –similar in size that of a supernova remnant–unlike any they’d seen before in our Milky Way galaxy: a large, faint blue cloud of gas in space with a living star at its center. Subsequent observations revealed a thick ring structure within it, leading to the object being named the Blue Ring Nebula.

Nov 18, 2020

Weird ‘gravitational molecules’ could orbit black holes like electrons swirling around atoms

Posted by in categories: cosmology, particle physics

Physicists have discovered a special kind of particle can exist around a pair of black holes in a similar way as an electron can exist around a pair of hydrogen atoms — the first example of a “gravitational molecule.”

Nov 17, 2020

Ontological Holism: The Ultimate Reality of Self-Simulating Universe, or Why We All Are One

Posted by in categories: cosmology, evolution, neuroscience

When we apprehend reality as the entirety of everything that exists including all dimensionality, all events and entities in their respective timelines, then by definition nothing exists outside of reality, not even “nothing.” It means that the first cause for reality’s existence must lie within ontological reality itself, since there is nothing outside of it. This self-causation of reality is perhaps best understood in relation to the existence of your own mind. Self-simulated reality transpires as self-evident when you relate to the notion that a phenomenal mind, which is a web of patterns, conceives a certain novel pattern and simultaneously perceives it. Furthermore, the imminent natural God of Spinoza, or Absolute Consciousness, becomes intelligible by applying a scientific tool of extrapolation to the meta-systemic phenomenon of radical emergence and treating consciousness as a primary ontological mover, the Source if you will, not a by-product of material interactions.

#OntologicalHolism #ontology #holism #cosmology #phenomenology #consciousness #mind #evolution

Nov 17, 2020

Unexpectedly, The Universe Is Getting Hotter And Hotter as It Expands

Posted by in categories: cosmology, physics

So the Universe is getting hotter? 😃


For almost a century, astronomers have understood that the Universe is in a state of expansion. Since the 1990s, they have come to understand that as of 4 billion years ago, the rate of expansion has been speeding up.

As this progresses, and the galaxy clusters and filaments of the Universe move farther apart, scientists theorize that the mean temperature of the Universe will gradually decline.

Continue reading “Unexpectedly, The Universe Is Getting Hotter And Hotter as It Expands” »

Nov 16, 2020

CERN Physicists Find First Evidence for Production of Top Quarks in Nucleus-Nucleus Collisions

Posted by in categories: cosmology, particle physics

New results from the CMS Collaboration at CERN’s Large Hadron Collider demonstrate for the first time that top quarks are produced in nucleus-nucleus collisions. The results open the path to study in a new and unique way the extreme state of matter that is thought to have existed shortly after the Big Bang.

First observed in proton-antiproton collisions at the Tevatron collider 25 years ago, this particle is also a unique and potentially very powerful tool to understand the inner content of nuclear matter.

Nov 14, 2020

Scientists Recreated the Nuclear Reaction That Happened Right After the Big Bang

Posted by in category: cosmology

Yay.


In a research laboratory deep beneath a mountain in Italy, scientists have made a new measurement of a nuclear reaction that immediately followed the Big Bang.

🌌 You like badass space stuff. So do we. Let’s nerd out over the universe together.

Continue reading “Scientists Recreated the Nuclear Reaction That Happened Right After the Big Bang” »

Nov 13, 2020

Researchers make most precise measurements of deuterium fusing with a proton to form helium-3

Posted by in categories: cosmology, information science, physics

A large team of researchers affiliated with a host of institutions in Italy, the U.K and Hungary has carried out the most precise measurements yet of deuterium fusing with a proton to form helium-3. In their paper published in the journal Nature, the group describes their effort and how they believe it will contribute to better understanding the events that transpired during the first few minutes after the Big Bang.

Astrophysics theory suggests that the creation of deuterium was one of the first things that happened after the Big Bang. Therefore, it plays an important role in Big Bang nucleosynthesis—the reactions that happened afterward that led to the production of several of the light elements. Theorists have developed equations that show the likely series of events that occurred, but to date, it has been difficult to prove them correct without physical evidence. In this new effort, the researchers working at the Laboratory for Underground Nuclear Astrophysics in Italy have carried out experiments to simulate those first few minutes, hoping to confirm the theories.

The work was conducted deep under the thick rock cover of the Gran Sasso mountain to prevent interference from —it involved firing a beam of protons at a deuterium target—deuterium being a form of hydrogen with just one and one neutron—and then measuring the rate of fusion. But because the rate of fusion is so low, the bombardment had to be carried out many times—the team carried out their work nearly every weekend for three years.