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Category: cosmology – Page 257

Black holes are among the most compelling mysteries of the universe. Nothing, not even light, can escape a black hole. And at the center of nearly every galaxy there is a supermassive black hole that’s millions to billions of times more massive than the sun. Understanding black holes, and how they become supermassive, could shed light on the evolution of the universe.

Three at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory have recently developed a model to explain the formation of supermassive black holes, as well as the nature of another phenomenon: . In a paper published in Physical Review Letters, theoretical physicists Hooman Davoudiasl, Peter Denton, and Julia Gehrlein describe a cosmological phase transition that facilitated the formation of supermassive black holes in a dark sector of the .

A cosmological phase transition is akin to a more familiar type of phase transition: bringing water to a boil. When water reaches the exact right temperature, it erupts into bubbles and vapor. Imagine that process taking place with a primordial state of matter. Then, shift the process in reverse so it has a cooling effect and magnify it to the scale of the universe.

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Scientists from Durham University and Kings College London have presented a theoretical review in a new study strongly supporting the search for axion dark matter.

The identity of dark matter, which makes up 85% of the matter in the universe, is one of the big unanswered questions in particle physics.

Scientists know of its existence because of its gravitational pull effects on stars and galaxies but what kind of particle it is, still remains a mystery.

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Dark matter is one of the biggest mysteries in the universe. Scientists have not yet observed dark matter directly. But, studies have confirmed its existence due to its gravitational pull effects on stars and galaxies. However, what kind of particle it remains elusive.

In a new study, scientists examined how axions can be described mathematically. They then presented how they relate to the fundamental symmetries of the Standard Model of particle physics.

Scientists from Durham University and Kings College London have presented a theoretical review in a new study strongly supporting the search for axion dark matter.

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You can see the galaxies warping in three dimensions.

— The best Hubble Space Telescope images of all time! — Hubble eyes two stunning galaxies before future James Webb Space Telescope observations — Distant galaxies appear to overlap in new Hubble telescope image

It’s also fortunate that the instrument took this image in visible light. Both IC 1,559 and NGC 169 have active galactic nuclei (AGN), meaning their cores are “monumentally energetic,” per NASA. In other words, they have supermassive black holes expelling vast quantities of energy in the full range of the electromagnetic spectrum.

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Two scientists as different as could be — one a bookish astrophysicist who formerly served as NASA’s chief scientist, the other a charismatic mathematician who moonlights as a painter — have teamed up to unlock the secrets of dark matter.

From his Washington, DC office at NASA headquarters, Dr. Jim Green admitted that although he retired as NASA’s top scientist in January, he was already back as a consultant. He told Futurism the story of meeting up with his friend, Yeshiva University mathematician Ed Belbruno, when the latter invited the former to speak at the University of Augsburg in Germany.

Over lunch, they got to talking about the Pioneer Anomaly, the astrophysics-speak term for the bizarre slowing down effect witnessed by Pioneers 10 and 11. One thing led to another, and the pair soon found themselves with a long shot concept for an “Interstellar Probe” mission that they say could gather unprecedented data about dark matter and its place in the cosmos.

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What happens to information after it has passed beyond the event horizon of a black hole? There have been suggestions that the geometry of wormholes might help us solve this vexing problem – but the math has been tricky, to say the least.

In a new paper, an international team of physicists has found a workaround for better understanding how a collapsing black hole can avoid breaking the fundamental laws of quantum physics (more on that in a bit).

Although highly theoretical, the work suggests there are likely things we are missing in the quest to resolve general relativity with quantum mechanics.

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Fluctuating light from a black hole, observed over 15 years, has revealed more about the way these enigmatic objects feed.

First, a structure called a corona forms around the outside of the event horizon. Then, powerful jets of plasma launch from the poles, punching material from the corona out into interstellar space at speeds close to that of light in a vacuum.

The finding – likened to the rhythmic pounding of a ‘heartbeat’ – resolves a long open question in black hole science.

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While black holes might always be black, they do occasionally emit some intense bursts of light from just outside their event horizon. Previously, what exactly caused these flares had been a mystery to science.

That mystery was solved recently by a team of researchers that used a series of supercomputers to model the details of black holes’ magnetic fields in far more detail than any previous effort. The simulations point to the breaking and remaking of super-strong magnetic fields as the source of the super-bright flares.

Scientists have known that black holes have powerful magnetic fields surrounding them for some time. Typically these are just one part of a complex dance of forces, material, and other phenomena that exist around a black hole.

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Wormhole vs Black hole? Which one do you prefer? Most importantly which one truly exists?

Why don’t you watch this video and find out because the information will shock you! Today you’ll FINALLY find out if you can in reality TIME TRAVEL!

So spread the video to pass the word.

Wondering what would happen if you fell into a Black hole? How about if the whole universe got sucked into it? Scary but you’ll get the answers in this video as well.

Enough said. Black hole conversations can be pretty dark.

So do like, share and subscribe to our channel Because it’s Interesting!

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