Menu

Blog

Archive for the ‘cosmology’ category: Page 276

Mar 10, 2020

Solved: The mystery of the expansion of the universe

Posted by in categories: cosmology, physics

The Earth, solar system, the entire Milky Way and the few thousand galaxies closest to us move in a vast “bubble” that is 250 million light years in diameter, where the average density of matter is half as high as for the rest of the universe. This is the hypothesis advanced by a theoretical physicist from the University of Geneva (UNIGE) to solve a conundrum that has been splitting the scientific community for a decade: At what speed is the universe expanding? Until now, at least two independent calculation methods have arrived at two values that are different by about 10% with a deviation that is statistically irreconcilable. This new approach, which is set out in the journal Physics Letters B, erases this divergence without making use of any “new physics.”

The has been expanding since the Big Bang occurred 13.8 billion years ago—a proposition first made by the Belgian canon and physicist Georges Lemaître (1894−1966), and first demonstrated by Edwin Hubble (1889−1953). The American astronomer discovered in 1929 that every galaxy is pulling away from us, and that the most distant galaxies are moving the most quickly. This suggests that there was a time in the past when all the galaxies were located at the same spot, a time that can only correspond to the Big Bang. This research gave rise to the Hubble-Lemaître law, including the Hubble constant (H0), which denotes the universe’s rate of expansion. The best H0 estimates currently lie around 70 (km/s)/Mpc (meaning that the universe is expanding 70 kilometers a second more quickly every 3.26 million light years). The problem is that there are two conflicting methods of calculation.

Mar 9, 2020

Type VII

Posted by in categories: cosmology, futurism

A type V II or K7 civilization would travel, transcend and ultimately oversee or ‘’be’’ the Omniverse which is the collection of every single universe, multiverse, megaverse, paraverse, dimension (alternate or pocket) and realm. Everything is in the Omniverse, and there is only one Omniverse.

It is likely that such power would come from an individual rather than a civilization, as the civilization would have transcended and merged into a single mind that would encompass all thoughts and all timelines, thus being omnipotent, omnipresent, and omniscient. This is the Creator: a god above all gods, responsible for all of existence, past and future.

Retrieved from “https://kardashev.fandom.com/wiki/Type_VII?oldid=787”.

Mar 7, 2020

Researchers create portable black hole

Posted by in categories: cosmology, physics, transportation

Essentially from a disposal device to even warp drive hoverboards to even like gravity field control to even like hovering spaceships.


Physicists have created a black hole for light that can fit in your coat pocket. Their device, which measures just 22 centimetres across, can suck up microwave light and convert it into heat.

The hole is the latest clever device to use ‘metamaterials’, specially engineered materials that can bend light in unusual ways. Previously, scientists have used such metamaterials to build ‘invisibility carpets’ and super-clear lenses. This latest black hole was made by Qiang Chen and Tie Jun Cui of Southeast University in Nanjing, China, and is described in a paper on the preprint server ArXiv1.

Continue reading “Researchers create portable black hole” »

Mar 7, 2020

Physicists have narrowed the mass range for hypothetical dark matter axions

Posted by in categories: cosmology, particle physics

In two new studies, scientists search for axions within new mass ranges but the particles remain elusive.

Mar 6, 2020

Scientists think they’ve finally figured out dark matter

Posted by in categories: cosmology, particle physics

When astronomers gaze into space they can see many different things. Galaxies, stars, and even black holes can be spotted from our place here on Earth. However, one of the most abundant types of matter in the universe can’t actually be seen at all, or at least we’ve yet to invent the means to do so.

Dark matter may account for over three-quarters of all matter in the universe, but it can’t be observed directly. Instead, scientists have to infer its existence based on how other objects in the cosmos react to its gravity. But what is it, and will we ever be able to explain its origins? A new study by researchers at the University of York attempts to do just that, offering a potential explanation for what dark matter really is.

The researchers say that the secret of dark matter may rest in a type of particle called a d-star hexaquark. As SciTechDaily notes, it’s a particle made up of six quarks, which are the tiny bits that make up protons and neutrons, but because of their arrangement in a d-star, they are more versatile.

Mar 6, 2020

Did this newfound particle form the universe’s dark matter?

Posted by in categories: cosmology, particle physics

Researchers think that a newly identified subatomic particle may have formed the universe’s dark matter right after the Big Bang, approximately 13.8 billion years ago.

While scientists have determined that up to 80% of the matter in the universe could be dark matter, our understanding of what the mysterious substance might be is still lacking, as no one has ever directly observed it.

Mar 5, 2020

Gravity’s waterfall

Posted by in categories: cosmology, physics

Physicists are using analog black holes to better understand gravity.

Mar 4, 2020

Can I Use This Experimental Wormhole to Escape the Election?

Posted by in category: cosmology

When a black hole is starting to look like an attractive option, things are real bad.

Mar 4, 2020

Scientists shed light on mystery of dark matter

Posted by in categories: cosmology, particle physics

Scientists have identified a sub-atomic particle that could have formed the “dark matter” in the Universe during the Big Bang.

Up to 80% of the Universe could be , but despite many decades of study, its physical origin has remained an enigma. While it cannot be seen directly, scientists know it exists because of its interaction via gravity with visible matter like stars and planets. Dark matter is composed of particles that do not absorb, reflect or emit light.

Now, nuclear physicists at the University of York are putting forward a new candidate for the mysterious matter—a particle they recently discovered called the d-star hexaquark.

Mar 4, 2020

NASA Science Mission Directorate

Posted by in categories: cosmology, science

What is dark energy? More is unknown than is known — we know how much there is, and we know some of its properties; other than that, dark energy is a mystery — but an important one. Roughly 70% of the Universe is made of dark energy. Dark matter makes up about 25%. The rest — everything on Earth, everything ever observed with all of our instruments, all normal matter adds up to less than 5% of the Universe. Then again, maybe it shouldn’t be called “normal” matter since it is a small fraction of the Universe!