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Archive for the ‘cosmology’ category: Page 238

Sep 5, 2021

New Evidence against the Standard Model of Cosmology

Posted by in categories: cosmology, physics

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This video’s topic is close to my own research, cosmology. The current standard model of cosmology rests on the “cosmological principle” — the idea that the universe looks, on the average, the same everywhere. Alas, it doesn’t look good for the cosmological principle. Just what does the evidence say and, if it holds up, what does this mean? At the end of this video, you’ll know.

Continue reading “New Evidence against the Standard Model of Cosmology” »

Sep 3, 2021

A new kind of supernova makes weird black holes

Posted by in category: cosmology

Scientists observed a new kind of supernova: the early death of a massive star triggered when it eats its companion.


Scientists have observed a new kind of supernova, the early death of a massive star trriggered when it eats its companion.

Sep 2, 2021

Cat genome’s ‘dark matter’ may hold clues to our health

Posted by in categories: biological, biotech/medical, cosmology, genetics

Cats have many superior genetic mutations like night vision even immunity to the current pandemic. If we can find the key to their immunity we could find a way to have near super human immunity.


“Getting a better understanding of the cat’s biology and genetic makeup will help us better understand the biology of humans, too,” says Leslie Lyons. (Credit: Lottie/Flickr)

The findings, published in Trends in Genetics, come after decades of genome DNA sequencing by Leslie Lyons, professor of comparative medicine in the University of Missouri College of Veterinary Medicine. Their cat genome assembly is nearly 100% complete.

Sep 2, 2021

Alien ‘Dyson spheres’ could be harvesting the power of black holes

Posted by in category: cosmology

ET could harvest energy from a black hole.


Researchers show how intelligent aliens might draw nearly-limitless power from a black hole using a Dyson sphere.

Sep 1, 2021

Astronomers Use “X-Ray Magnifying Glass” To Enhance View of Distant Black Holes

Posted by in category: cosmology

Astronomers have used an “X-ray magnifying glass” to study a black hole system in the early Universe. The amplification and magnification of light by an intervening galaxy allowed the detection of two distant X-ray-emitting objects. The objects are either two growing supermassive black holes.

Sep 1, 2021

Dark Energy Camera captures detailed view of striking peculiar galaxy

Posted by in categories: cosmology, electronics

A spectacular portrait of the galaxy Centaurus A has been captured by astronomers using the Dark Energy Camera mounted on the Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory in Chile. This galaxy’s peculiar appearance—cloaked in dark tendrils of dust—stems from a past interaction with another galaxy, and its size and proximity to Earth make it one of the best-studied giant galaxies in the night sky.

The galaxy Centaurus A, which lies over 12 million light-years away in the direction of the southern-hemisphere constellation Centaurus (The Centaur), is the leading light of this striking image. This image provides a spectacular view of the luminous glow of stars and the dark tendrils of dust that hide the bright center of the galaxy. This dust is the result of a past galactic collision, in which a giant elliptical galaxy merged with a smaller spiral galaxy. As well as large amounts of gas and dust, Centaurus A’s dust lane contains widespread star formation, as indicated by the red clouds of hydrogen and by the large number of faint blue stars visible at each end of the dust lane.

Continue reading “Dark Energy Camera captures detailed view of striking peculiar galaxy” »

Aug 30, 2021

Cosmic Pollution: Astronomers Show Galaxies Pump Out Contaminated Exhausts

Posted by in categories: cosmology, supercomputing

“Enormous clouds of gas are pulled into galaxies and used in the process of making stars,” said co-lead author Deanne Fisher, associate professor at the Centre for Astrophysics and Supercomputing at Swinburne University in Australia.

On its way in it is made of hydrogen and helium. By using a new piece of equipment called the Keck Cosmic Web Imager, we were able to confirm that stars made from this fresh gas eventually drive a huge amount of material back out of the system, mainly through supernovas.

But this stuff is no longer nice and clean – it contains lots of other elements, including oxygen, carbon, and iron.

Aug 29, 2021

Rogue black holes could be wandering at the edges of the Milky Way

Posted by in category: cosmology

There could be 12 of the invisible giants in the Milky Way alone.

Aug 29, 2021

Scientists Detected Gravitational Waves That May Stem From a ‘Cloud of Dark Matter Particles’

Posted by in categories: cosmology, particle physics

https://youtube.com/watch?v=FqVHthbdG8w

Physicists may have just detected a cloud of dark matter particles! It could also be primordial black holes, but either would be a major breakthrough.

Aug 28, 2021

Advanced Civilizations Could be Using Dyson Spheres to Collect Unimaginable Energy From Black Holes

Posted by in categories: cosmology, engineering

Black holes are more than just massive objects that swallow everything around them – they’re also one of the universe’s biggest and most stable energy sources. That would make them invaluable to the type of civilization that needs huge amounts of power, such as a Type II Kardashev civilization. But to harness all of that power, the civilization would have to encircle the entire black hole with something that could capture the power it is emitting.

One potential solution would be a Dyson sphere – a type of stellar mega engineering project that encapsulates an entire star (or, in this case, a black hole) in an artificial sheath that captures all of the energy the object at its center emits. But even if it was able to capture all of the energy the black hole emits, the sphere itself would still suffer from heat loss. And that heat loss would make it visible to us, according to new research published by an international team led by researchers at the National Tsing Hua University in Taiwan.