Start at the Big Bang…
“The map of the observable Universe” takes viewers on a 13.7-billion-year-old tour of the cosmos from the present to the moments after the Big Bang.
Category: cosmology – Page 187
As well as admiring beautiful pictures of space, you can also listen to those pictures via sonifications. These take images and translate them into eerie sounds to illustrate the wonderful and strange phenomena of our universe. NASA’s latest sonification illustrates the rings of X-rays that have been observed echoing around a black hole in the V404 Cygni system.
The sonification was made using data from NASA’s Chandra X-ray Observatory and Neil Gehrels Swift Observatory, both of which look in the X-ray wavelength. The data from the optical wavelength come from the Pan-STARRS telescope in Hawaii. Taken together, you can see how the X-ray bursts propagate outward from a central point which is the black hole. The black hole itself remains invisible, as it absorbs all light.
However, even though black holes are themselves invisible, the material around them can glow brightly. As material like dust and gas is attracted to the black hole due to gravity, it joins into a swirling disk around the black hole called an accretion disk. This material rubs together and creates heat due to friction, and can become so hot that it glows.
If wormholes in space exist, they look a lot like black holes from a particular angle, physicists claim, raising the possibility we’ve seen examples of this long-sought phenomenon without knowing it.
For something that emits no light that we can detect, black holes just love to cloak themselves in radiance.
Some of the brightest light in the Universe comes from supermassive black holes, in fact. Well, not actually the black holes themselves; it’s the material around them as they actively slurp down vast amounts of matter from their immediate surroundings.
Among the brightest of these maelstroms of swirling hot material are galaxies known as blazars. Not only do they glow with the heat of a swirling coat, but they also channel material into ‘blazing’ beams that zoom through the cosmos, shedding electromagnetic radiation at energies that are hard to fathom.
NASA’s James Webb Space Telescope has peered into the chaos of the Cartwheel Galaxy, revealing new details about star formation and the galaxy’s central black hole.
Webb’s powerful infrared gaze produced this detailed image of the Cartwheel and two smaller companion galaxies against a backdrop of many other galaxies. This image provides a new view of how the Cartwheel Galaxy has changed over billions of years.
The Cartwheel Galaxy, located about 500 million light-years away in the Sculptor constellation, is a rare sight. Its appearance, much like that of the wheel of a wagon, is the result of an intense event – a high-speed collision between a large spiral galaxy and a smaller galaxy not visible in this image. Collisions of galactic proportions cause a cascade of different, smaller events between the galaxies involved; the Cartwheel is no exception.
Physicists say they’ve found evidence in data from Europe’s Large Hadron Collider for three never-before-seen combinations of quarks, just as the world’s largest particle-smasher is beginning a new round of high-energy experiments.
The three exotic types of particles – which include two four-quark combinations, known as tetraquarks, plus a five-quark unit called a pentaquark – are totally consistent with the Standard Model, the decades-old theory that describes the structure of atoms.
In contrast, scientists hope that the LHC’s current run will turn up evidence of physics that goes beyond the Standard Model to explain the nature of mysterious phenomena such as dark matter. Such evidence could point to new arrays of subatomic particles, or even extra dimensions in our Universe.
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.
https://youtube.com/watch?v=cdf2UthcirY&feature=share
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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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.
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 accretion disk that would be situated around a class of static traversable wormholes and compared the findings to images of black holes.
For many years, scientists and science fiction writers have considered the theoretical possibility of a wormhole. Such an object, theory 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 speed of light —by taking a shortcut.