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 Post subject: Re: Cosmology Thread
PostPosted: Wed Jan 10, 2018 1:26 pm 
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Dead Stars Orbiting Black Holes May Explain Mysterious Fast Radio Burst

https://www.scientificamerican.com/arti ... io-bursts/

Quote:
Scientists are peering into the “engines” behind some of the most extreme outbursts in the universe

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 Post subject: Re: Cosmology Thread
PostPosted: Thu Jan 11, 2018 2:42 pm 
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Molecular Clue to the Mystery of Carbon’s Cosmic Origin Uncovered

https://www.scientificamerican.com/arti ... uncovered/

Quote:
A chemical found in a distant gas cloud could help explain where planets like Earth get the seeds of life

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 Post subject: Re: Cosmology Thread
PostPosted: Fri Jan 19, 2018 1:27 pm 
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Physicists Have Created an Artificial Gamma Ray Burst in the Lab

https://www.universetoday.com/138282/ph ... burst-lab/

Quote:
“In our experiment, we were able to observe, for the first time, some of the key phenomena that play a major role in the generation of gamma ray bursts, such as the self-generation of magnetic fields that lasted for a long time. These were able to confirm some major theoretical predictions of the strength and distribution of these fields. In short, our experiment independently confirms that the models currently used to understand gamma ray bursts are on the right track.”

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 Post subject: Re: Cosmology Thread
PostPosted: Mon Jan 29, 2018 10:08 am 
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Missing Neutrons May Lead a Secret Life as Dark Matter

https://www.scientificamerican.com/arti ... rk-matter/

Quote:
This may be the reason experiments can’t agree on the neutron lifetime, according to a new idea.

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 Post subject: Re: Cosmology Thread
PostPosted: Tue Jan 30, 2018 12:28 pm 
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A visualization of a black hole effect up the fabric of space-time.


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blackhole.jpg
blackhole.jpg [ 163.43 KiB | Viewed 2491 times ]

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 Post subject: Re: Cosmology Thread
PostPosted: Thu Feb 08, 2018 9:25 am 
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This Is the Most Detailed Simulation of the Universe

https://www.seeker.com/astrophysics/thi ... e-universe

Quote:
Researchers have developed the most advanced model of the universe, called IllustrisTNG, which will advance understanding of how galaxies form and evolve.

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 Post subject: Re: Cosmology Thread
PostPosted: Fri Feb 23, 2018 9:06 am 
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Black Holes Could Erase Your Past

https://www.dailygrail.com/2018/02/blac ... your-past/

It's all about the Cauchy horizon and the breakdown of determinism thanks to Einstein's theory of general relativity.

Actual scientific links to the abstract, which was eventually peer reviewed, included with my article.

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 Post subject: Re: Cosmology Thread
PostPosted: Wed Feb 28, 2018 1:33 pm 
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A Potentially Game-Changing Message from the Dawn of Time

https://blogs.scientificamerican.com/ob ... n-of-time/

Quote:
Astronomers may have spotted, albeit indirectly, the very first starlight in the universe—plus some new evidence about the properties of dark matter

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 Post subject: Re: Cosmology Thread
PostPosted: Fri Mar 02, 2018 7:40 pm 
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Fingerprinting the Very First Stars

http://blogs.discovermagazine.com/d-bri ... starlight/

I am wondering why they're so cocksure these are the first stars, rather than simply stating "these are the oldest signatures of stars discovered to date."

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 Post subject: Re: Cosmology Thread
PostPosted: Sun Mar 04, 2018 7:02 pm 
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Can Strongly Lensed Type Ia Supernovae Resolve One of Cosmology’s Biggest Controversies?

http://www.astrowatch.net/2018/03/can-s ... novae.html

Quote:
...(T)he researchers found that the universe was expanding a little faster than Lambda-CDM and the Cosmic Microwave Background (CMB), relic radiation from the Big Bang, predicted. So it seems something’s amiss – could this discrepancy be a systematic error, or possibly new physics?

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 Post subject: Re: Cosmology Thread
PostPosted: Mon Mar 12, 2018 7:03 pm 
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Could the Weirdness of Quantum Physics Produce a New Kind of Star?

https://gizmodo.com/could-the-weirdness ... 1823657773

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 Post subject: Re: Cosmology Thread
PostPosted: Fri Mar 16, 2018 7:50 pm 
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Black Hole Pretenders Could Really Be Bizarre Quantum Stars

https://www.scientificamerican.com/arti ... tum-stars/

and

Fate of gravitational collapse in semiclassical gravity

https://journals.aps.org/prd/abstract/1 ... .77.044032

Quote:
While the outcome of gravitational collapse in classical general relativity is unquestionably a black hole, up to now no full and complete semiclassical description of black hole formation has been thoroughly investigated. Here we revisit the standard scenario for this process. By analyzing how semiclassical collapse proceeds we show that the very formation of a trapping horizon can be seriously questioned for a large set of, possibly realistic, scenarios. We emphasize that in principle the theoretical framework of semiclassical gravity certainly allows the formation of trapping horizons. What we are questioning here is the more subtle point of whether or not the standard black hole picture is appropriate for describing the end point of realistic collapse. Indeed if semiclassical physics were in some cases to prevent formation of the trapping horizon, then this suggests the possibility of new collapsed objects which can be much less problematic, making it unnecessary to confront the information paradox or the runaway end point problem.

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 Post subject: Re: Cosmology Thread
PostPosted: Fri Mar 16, 2018 11:30 pm 
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Barrow's paradox:

"A universe simple enough to be understood is too simple to produce a mind capable of understanding it."
John D. Barrow, FRS

See https://en.wikiquote.org/wiki/John_D._Barrow for some of his other quotes.

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 Post subject: Re: Cosmology Thread
PostPosted: Thu Mar 22, 2018 6:09 pm 
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Black Hole Echoes Would Reveal Break With Einstein’s Theory

https://www.quantamagazine.org/black-ho ... Anomalist#

Quote:
Gravitational waves have opened up new ways to test the properties of black holes — and Einstein’s theory of gravity along with them.

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 Post subject: Re: Cosmology Thread
PostPosted: Mon Apr 23, 2018 5:45 pm 
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Is It Time For A New Astronomical Yardstick?

http://blogs.discovermagazine.com/d-bri ... ic-system/

Quote:
The use of units such as light-years (the distance light covers in a year: 5.88 trillion miles [9.5 trillion kilometers]) and astronomical units (abbreviated AU, the average Earth-Sun distance: 93 million miles [150 million km]) persists, he says, when “simpler logical units would help both within the subject and in multidisciplinary research.”

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 Post subject: Re: Cosmology Thread
PostPosted: Tue May 08, 2018 6:21 pm 
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The Case Against Dark Matter

http://blogs.discovermagazine.com/d-bri ... t-gravity/

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 Post subject: Re: Cosmology Thread
PostPosted: Thu May 10, 2018 2:06 am 
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Faster-than-light communication between particles was confirmed in a major quantum experiment involving gamers.

https://www.livescience.com/62523-physi ... check.html

We do indeed live in a spooky universe.

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 Post subject: Re: Cosmology Thread
PostPosted: Mon May 14, 2018 6:24 pm 
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A Fistful of Stars

https://aeon.co/videos/embark-on-an-ope ... -of-a-star

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 Post subject: Re: Cosmology Thread
PostPosted: Tue May 15, 2018 6:52 pm 
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Found: A Rapidly Expanding Supermassive Black Hole

https://www.atlasobscura.com/articles/n ... black-hole

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 Post subject: Re: Cosmology Thread
PostPosted: Tue May 22, 2018 8:16 pm 
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Maybe We Could "See" a Singularity After All

https://blogs.scientificamerican.com/ob ... after-all/

Black holes...

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 Post subject: Re: Cosmology Thread
PostPosted: Sun Jun 10, 2018 7:38 pm 
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There are Strange Objects Near the Center of the Galaxy. They Look Like Gas, but Behave Like Stars

https://www.universetoday.com/139437/th ... ike-stars/

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 Post subject: Re: Cosmology Thread
PostPosted: Thu Jul 05, 2018 9:17 pm 
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Axions are proposed dark matter particles. There's a search going on to detect them:

http://www.foxnews.com/tech/2018/07/03/ ... =obnetwork

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 Post subject: Re: Cosmology Thread
PostPosted: Tue Jul 10, 2018 5:59 pm 
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First evidence that amino acids formed soon after the Big Bang

https://www.technologyreview.com/s/6115 ... -big-bang/

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 Post subject: Re: Cosmology Thread
PostPosted: Mon Jul 23, 2018 7:18 pm 
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Why cosmology without philosophy is like a ship without a hull

https://aeon.co/ideas/why-cosmology-wit ... out-a-hull

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