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Archive for the ‘cosmology’ category: Page 380

Dec 16, 2016

Strange Magnetic Stars Could Spawn Some of the Universe’s Most Massive Black Holes

Posted by in categories: cosmology, physics

Earlier this year, after 100 years of searching for them, an international team of researchers detected the presence of gravitational waves for the first time, thanks to the collision of two massive black holes, providing proof for Einstein’s general theory of relativity.

Needless to say, it was a big deal, but two important questions remained: where did the two colliding black holes that created these gravitational ripples in space-time come from, and how did they get so massive?

Black holes form when a star runs out of fuel and collapses in on itself.

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Dec 16, 2016

Does The Universe Have a Hard Drive?

Posted by in categories: computing, cosmology, physics, quantum physics, supercomputing

Zura Kakushadze is lead author of this peer reviewed paper published by the Free University of Tbilisi. It describes an information paradox that arises in a materialist’s description of the Universe—if we assume that the Universe is 100% quantum. The observation of the paradox stems from an interdisciplinary thought process whereby the Universe can be viewed as a “quantum computer”.

The presentation is intentionally nontechnical to make it accessible to a wide a readership.

Does the Universe Have a Hard Drive?

Dec 15, 2016

The neuroscience behind imagination

Posted by in categories: cosmology, education, neuroscience

Trying to simplify and understand imagination isn’t that easy. Should be a great read for my tech friends trying to replicate this process.


Imagination… we can all imagine things – even things we have never seen before. Even things that don’t exist. How do our brains achieve that?

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Dec 13, 2016

Physicists Just Confirmed Evidence of A Possible Fifth Fundamental Force

Posted by in categories: cosmology, particle physics

In Brief A deeper look into studies that were previously conducted by Hungarian physicists has recently uncovered evidence of a fifth fundamental force of nature. If confirmed, it could stand as an explanation for dark matter.

To date, there are four conventionally known fundamental forces that hold the universe together—gravity, electromagnetism, and the strong and weak nuclear forces. But a closer look at previous studies conducted by Hungarian physicists, which hinted at a new force, has led a team of scientists to evidence that the anomaly in the data could actually be a fifth force of nature.

It should be noted that the groundbreaking claim is still a very long way from being confirmed, but the current data available is enough to push research into what this new force-carrying particle is (or may be).

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Dec 1, 2016

The Missing Universe: CERN Has Started Searching for “Dark Photons”

Posted by in categories: cosmology, particle physics

In Brief

  • Dark matter seems to outweigh visible matter roughly six to one, making up about 27% of the universe.
  • Physicists from CERN now believe there’s a fifth universal force that rules the behavior of dark matter, and is transmitted by a particle called the dark photon.

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Nov 29, 2016

The Case Against Dark Matter

Posted by in categories: cosmology, particle physics

A proposed theory of gravity does away with dark matter, even as new astrophysical findings challenge the need for galaxies full of the invisible mystery particles.

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Nov 28, 2016

Time travellers could use parallel dimensions to visit the past, scientists claim

Posted by in categories: cosmology, physics, time travel

THERE are multiple timelines playing out in parallel universes, according to a team of researchers.

The sensational claim was made by a team of physicists, who believe that the parallel universes can all affect one another.

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Nov 26, 2016

New Theory Shows Interaction Between Parallel Worlds And The Potential To Rewrite Quantum Theory

Posted by in categories: cosmology, quantum physics

The 20th century was loaded with experiments and discoveries that I sometimes forget how big of an impact things like quantum theory really had on our lives. Bold new thought experiments and suggestions have been made that seemingly left us wondering what our universe might be made of after all.

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Nov 25, 2016

Why the US Is Losing Ground on the Next Generation of Powerful Supercomputers

Posted by in categories: cosmology, supercomputing

“I feel the need — the need for speed.”

The tagline from the 1980s movie Top Gun could be seen as the mantra for the high-performance computing system world these days. The next milestone in the endless race to build faster and faster machines has become embodied in standing up the first exascale supercomputer.

Exascale might sound like an alternative universe in a science fiction movie, and judging by all the hype, one could be forgiven for thinking that an exascale supercomputer might be capable of opening up wormholes in the multiverse (if you subscribe to that particular cosmological theory). In reality, exascale computing is at once more prosaic — a really, really fast computer — and packs the potential to change how we simulate, model and predict life, the universe and pretty much everything.

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Nov 25, 2016

NA64 hunts the mysterious dark photon

Posted by in categories: cosmology, particle physics

One of the biggest puzzles in physics is that eighty-five percent of the matter in our universe is “dark”: it does not interact with the photons of the conventional electromagnetic force and is therefore invisible to our eyes and telescopes. Although the composition and origin of dark matter are a mystery, we know it exists because astronomers observe its gravitational pull on ordinary visible matter such as stars and galaxies.

Some theories suggest that, in addition to gravity, could interact with visible matter through a new force, which has so far escaped detection. Just as the is carried by the photon, this dark force is thought to be transmitted by a particle called “dark” photon which is predicted to act as a mediator between visible and dark matter.

“To use a metaphor, an otherwise impossible dialogue between two people not speaking the same language (visible and dark matter) can be enabled by a mediator (the ), who understands one language and speaks the other one,” explains Sergei Gninenko, spokesperson for the NA64 collaboration.

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