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Archive for the ‘cosmology’ category: Page 151

Nov 25, 2022

Black Holes and Holograms: A New Theory That Changes Our Understanding of the Universe

Posted by in categories: cosmology, holograms, quantum physics

Confusing? It may sound so, but it isn’t actually. What Benini and Milan have done is apply the theory of the holographic principle to black holes. In this way, their mysterious thermodynamic properties have become more understandable: by focusing on predicting that these bodies have high entropy and looking at them in terms of quantum mechanics, which allows us to describe them as a hologram: they have two dimensions, in which gravity disappears, but they reproduce an object in three dimensions.

But there’s more. Much more.

According to the authors of the new studies, this is only the first step towards a deeper understanding of these cosmic bodies and the properties that characterize them when quantum mechanics intersects with general relativity.

Nov 25, 2022

Scientists Have Just Announced That They Found A Portal To The Fifth Dimension

Posted by in categories: cosmology, education, particle physics

https://youtube.com/watch?v=cdf2UthcirY

Scientists and astronomers have always been curious about the peculiarities.
in our solar system. And at the very top of their list of curiosity is dark matter. Although several phenomena has been unraveled by different.
scientists, the mystery that is dark matter still remains largely unsolved.
In a bid to satisfy their curiosity, a team of scientists while researching about.
dark matter have recently discovered a portal leading to the fifth dimension.
and this discovery is set to change how we view the universe forever.
How did the scientists find the portal, and how would this discovery affect.
our world?
Join us as we explore how scientists just announced that they found a portal.
to the fifth dimension.
Dark matter has long since been an enigma to scientists and astronomers.
Although it takes up most of our universe, scientists have yet to fully unravel.
its mystery. With the discovery of the fifth dimension, scientists believe that.
this dimension might explain the seventy-five percent of dark matter that has not been observed yet. Even though we don’t know much about it, most.
of our ideas about the physical universe relies on the concept of dark matter.
Scientists are rooted in this idea simply because dark matter takes up most.
of our universe, and it is regarded as a pinch hitter that helps scientists.
understand how gravity works. They believe several features would dissolve.
or fall apart without an “x factor” of dark matter. Even at that, dark matter.
does not disrupt the particles we see and feel. This means it must also have.
other special properties, hence why more research on dark matter was.
needed.

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Nov 25, 2022

Astrophysicists Solve 40-Year-Old Black Hole Jet Mystery With NASA’s IXPE

Posted by in categories: cosmology, physics

Blazars are some of the brightest objects in the cosmos. They are composed of a supermassive black hole.

A black hole is a place in space where the gravitational field is so strong that not even light can escape it. Astronomers classify black holes into three categories by size: miniature, stellar, and supermassive black holes. Miniature black holes could have a mass smaller than our Sun and supermassive black holes could have a mass equivalent to billions of our Sun.

Nov 24, 2022

Researchers suggest that wormholes may look almost identical to black holes

Posted by in category: cosmology

A group of researchers at Sofia University has found evidence that suggests the reason that a wormhole has never been observed is that they appear almost identical to black holes.

In their paper published in the journal Physical Review D Petya Nedkova, Galin Gyulchev, Stoytcho Yazadjiev and Valentin Delijski describe studying theoretical linear polarization from an that would be situated around a class of static traversable wormholes and compared the findings to images of .

For many years, scientists and science fiction writers have considered the theoretical possibility of a . Such an object, suggests, would take the form of a tunnel of sorts that connects two different parts of the universe. Moving through the tunnel would allow for travel to distant destinations in ways not available to spaceships incapable of moving faster than the —by taking a shortcut.

Nov 24, 2022

Lee Smolin: Quantum Gravity and Einstein’s Unfinished Revolution

Posted by in categories: biological, cosmology, quantum physics

https://www.youtube.com/watch?v=WgLo4gmEraU

Lee Smolin is a theoretical physicist, co-inventor of loop quantum gravity, and a contributor of many interesting ideas to cosmology, quantum field theory, the foundations of quantum mechanics, theoretical biology, and the philosophy of science. He is the author of several books including one that critiques the state of physics and string theory called The Trouble with Physics, and his latest book, Einstein’s Unfinished Revolution: The Search for What Lies Beyond the Quantum.

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Nov 24, 2022

Lab-grown black hole may prove Stephen Hawking’s most challenging theory right

Posted by in categories: cosmology, particle physics

By using a chain of atoms to simulate a black hole’s event horizon, researchers have shown that Hawking radiation may exist just as the late physicist described. Scientists have created a lab-grown black hole analog to test one of Stephen Hawking’s most famous theories — and it behaves just how he predicted.

Nov 24, 2022

Astrophysicists solve a mystery of supermassive black holes

Posted by in categories: cosmology, physics

Black holes continue to be equal parts terrifying and fascinating.


An underrated NASA telescope reveals the mechanics behind some supermassive black holes’ relativistic jets.

Nov 24, 2022

Machine learning tools autonomously classify 1,000 supernovae

Posted by in categories: cosmology, information science, robotics/AI

Astronomers at Caltech have used a machine learning algorithm to classify 1,000 supernovae completely autonomously. The algorithm was applied to data captured by the Zwicky Transient Facility, or ZTF, a sky survey instrument based at Caltech’s Palomar Observatory.

“We needed a helping hand, and we knew that once we trained our computers to do the job, they would take a big load off our backs,” says Christoffer Fremling, a staff at Caltech and the mastermind behind the , dubbed SNIascore. “SNIascore classified its first supernova in April 2021, and, a year and a half later, we are hitting a nice milestone of 1,000 supernovae.”

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Nov 23, 2022

Scientists observe bright jets of light shooting from black hole like never before

Posted by in categories: computing, cosmology, particle physics

NASA’s Imaging X-ray Polarimetry Explorer allowed scientists to probe a distant blazar, shedding new light on the cosmic giants.

Scientists made observations of bright, shining jets of particles shooting out of a supermassive black hole and they published their findings in a paper in Nature.

Investigating a blazar with state-of-the-art instruments.

Continue reading “Scientists observe bright jets of light shooting from black hole like never before” »

Nov 23, 2022

Scientists Create Black Hole in Lab and it Started to Glow

Posted by in category: cosmology

By simulating an event horizon to test a Stephen Hawking theory, scientists created a lab-grown black hole, which started glowing.