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Archive for the ‘cosmology’ category: Page 144

Feb 6, 2023

Time Projection Chamber Installed at sPHENIX

Posted by in categories: cosmology, particle physics

Experts assembling sPHENIX, a state-of-the-art particle detector at the U.S. Department of Energy’s Brookhaven National Laboratory, successfully installed a major tracking component on Jan. 19. The Time Projection Chamber, or TPC, is one of the final pieces to move into place before sPHENIX begins tracking particle smash-ups at the Relativistic Heavy Ion Collider (RHIC) this spring.

The TPC is a gas-filled detector that, combined with the detector’s strong magnetic field, allows nuclear physicists to measure the momentum of charged particles streaming from RHIC collisions. It is one of many detector components that nuclear physicists will use to glean more information about the quark-gluon plasma (QGP)—a primordial soup made up of matter’s fundamental building blocks, quarks and gluons.

“QGP existed at the dawn of the universe some 14 billion years ago, about a millionth of a second after the Big Bang,” said Thomas Hemmick, a physicist at Stony Brook University (SBU) and a collaborator on RHIC research “RHIC’s collisions and sPHENIX’s ability to capture snapshots of particles traversing the QGP will help scientists understand how quarks and gluons cooled and coalesced to form the protons and neutrons that make up the atomic nuclei of all visible matter in the universe today.”

Feb 5, 2023

If There Really Are Other Universes, This Is How We’ll Travel the Multiverse

Posted by in categories: cosmology, quantum physics, space travel

Probably not but who knows in a million years?


Whether other universes are membranes floating in space, or a quirk of quantum mechanics, this is how physicists think we’ll traverse the multiverse.

Feb 4, 2023

Future World: A Million Years Later — Artificial Intelligence Tech That Will Change The Universe

Posted by in categories: business, cosmology, mathematics, physics, robotics/AI, space travel

https://youtube.com/watch?v=V8cPdjO3a_U

Find out what the world will be like a million years from now, as well as what kind of technology we’ll have available.
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Timestamps:
0:00 No Physical Bodies.
1:51 Wormhole Creation.
2:44 Travel At Speed Of Light.
3:21 Type 3 Civilization.
4:52 Gravitational Waves.
5:46 Computers the Size of Planets.
6:56 Computronium.

Continue reading “Future World: A Million Years Later — Artificial Intelligence Tech That Will Change The Universe” »

Feb 3, 2023

Biological Big Bang: How we solved Darwin’s dilemma

Posted by in categories: biological, chemistry, cosmology, evolution

Evolution’s rapid pace after the Cambrian explosion

Though the work of Schopf and other paleobiologists continues to fill in the Precambrian fossil record, questions remain about the pace of the Cambrian explosion. What triggered life to evolve so fast?

The question has intrigued scientists of many disciplines for decades. Interdisciplinary collaboration has wrought a wealth of evidence from diverse perspectives — geochemical, paleoenvironmental, geological, anatomical, and taxonomic — that describes how biological organisms evolved in concert with changing environmental conditions.

Feb 3, 2023

Three years ago, we got the first-ever image of a gargantuan black hole — confirming Einstein’s greatest theory

Posted by in category: cosmology

Three years ago, the study of black holes was revolutionized. Now, the team is turning to the closest supermassive black hole to Earth — the one at the center of the Milky Way.

Feb 2, 2023

What are gluons?

Posted by in categories: cosmology, particle physics

Discover how gluons bind quarks together to form protons and neutrons and explore the form weird form of matter in which they existed just after the Big Bang.

Feb 2, 2023

‘Dark Photons’ Potentially Cause Heating Discrepancy in Intergalactic Gas, Research Reveals

Posted by in category: cosmology

Dark photons, a hypothetical form of dark matter, could explain the heating discrepancy in intergalactic gas. Read on to discover the exciting potential of dark photons in explaining the mysteries of the universe!

Feb 2, 2023

When your supernova’s a dud: Rare binary star features weirdly round orbit, researchers report

Posted by in categories: cosmology, physics

After crunching a mountain of astronomy data, Clarissa Pavao, an undergraduate at Embry-Riddle Aeronautical University’s Prescott, Arizona campus, submitted her preliminary analysis. Her mentor’s response was swift and in all-caps: “THERE’S AN ORBIT!” he wrote.

That was when Pavao, a senior space physics major, realized she was about to become a part of something big—a paper in the journal Nature that describes a rare binary star system with uncommon features.

The paper, published on Feb. 1, 2023, and co-authored with Dr. Noel D. Richardson, assistant professor of Physics and Astronomy at Embry-Riddle, describes a twin-star system that is luminous with X-rays and high in mass. Featuring a weirdly circular orbit—an oddity among binaries—the twin system seems to have formed when an or supernova fizzled out without the usual bang, similar to a dud firecracker.

Feb 2, 2023

The bubbling universe: A previously unknown phase transition in the early universe

Posted by in categories: cosmology, particle physics

Think of bringing a pot of water to the boil: As the temperature reaches the boiling point, bubbles form in the water, burst and evaporate as the water boils. This continues until there is no more water changing phase from liquid to steam.

This is roughly the idea of what happened in the very early universe, right after the Big Bang, 13.7 billion years ago.

The idea comes from particle physicists Martin S. Sloth from the Center for Cosmology and Particle Physics Phenomenology at University of Southern Denmark and Florian Niedermann from the Nordic Institute for Theoretical Physics (NORDITA) in Stockholm. Niedermann is a previous postdoc in Sloth’s research group. In this new scientific article, they present an even stronger basis for their idea.

Feb 1, 2023

New map of the universe’s matter reveals a possible hole in our understanding of the cosmos

Posted by in categories: cosmology, internet, mapping

Scientists have made one of the most precise maps of the universe’s matter, and it shows that something may be missing in our best model of the cosmos.

Created by pooling data from two telescopes that observe different types of light, the new map revealed that the universe is less “clumpy” than previous models predicted — a potential sign that the vast cosmic web that connects galaxies is less understood than scientists thought.

According to our current understanding, the cosmic web is a gigantic network of crisscrossing celestial superhighways paved with hydrogen gas and dark matter. Taking shape in the chaotic aftermath of the Big Bang, the web’s tendrils formed as clumps from the roiling broth of the young universe; where multiple strands of the web intersected, galaxies eventually formed. But the new map, published Jan. 31 as three separate studies in the journal Physical Review D, shows that in many parts of the universe, matter is less clumped together and more evenly spread out than theory predicts it should be.