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PostPosted: Wed Feb 25, 2015 8:59 pm 
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Scientists discover black hole so big it contradicts growth theory
Reuters
By Colin Packham 6 hours ago

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By Colin Packham

SYDNEY (Reuters) - Scientists say they have discovered a black hole so big that it challenges the theory about how they grow.

Scientists said this black hole was formed about 900 million years after the Big Bang.

But with measurements indicating it is 12 billion times the size of the Sun, the black hole challenges a widely accepted hypothesis of growth rates.

"Based on previous research, this is the largest black hole found for that period of time," Dr Fuyan Bian, Research School of Astronomy and Astrophysics, Australian National University (ANU), told Reuters on Wednesday.

"Current theory is for a limit to how fast a black hole can grow, but this black hole is too large for that theory."

The creation of supermassive black holes remains an open topic of research. However, many scientists have long believed the growth rate of black holes was limited.

Black holes grow, scientific theory suggests, as they absorb mass. However, as mass is absorbed, it will be heated creating radiation pressure, which pushes the mass away from the black hole.

"Basically, you have two forces balanced together which sets up a limit for growth, which is much smaller than what we found," said Bian.

The black hole was discovered a team of global scientists led by Xue-Bing Wu at Peking University, China, as part of the Sloan Digital Sky Survey, which provided imagery data of 35 percent of the northern hemisphere sky.

The ANU is leading a comparable project, known as SkyMapper, to carry out observations of the Southern Hemisphere sky.

Bian expects more black holes to be observed as the project advances.

(Editing by Robert Birsel)

...more at link
http://news.yahoo.com/scientists-discov ... soc_trk=tw

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PostPosted: Wed Feb 25, 2015 10:46 pm 
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SO interesting but mindboggling at the same time. Then I managed to read 50 or so comments. It's difficult for me to comprehend all of this in relation to how massive the Universe is. :60


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PostPosted: Wed Feb 25, 2015 11:42 pm 
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Very interesting, I'll have to have to read more about it and have the kiddo explain it to me :98

Or I could send a tweet to Don Lemon, he seems to have the black hole stuff down pat.

What happen to the sandwich, "I know it seems far fetched , but maybe, just maybe it was the black hole".

In all seriousness I love stuff that turns known facts into "Uh hmmmss" I find the fact that we make such grand proclamations about the universe with such scant empirical evidence. I think that there is far more that we do not understand than we do understand.

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