Author Topic: Scientists capture first-ever image of a black hole  (Read 1051 times)

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Scientists capture first-ever image of a black hole
« on: April 10, 2019, 01:44:37 pm »
Scientists capture first-ever image of a black hole
By Brooke Seipel - 04/10/19 09:30 AM EDT

The National Science Foundation on Wednesday revealed the first-ever image captured of a black hole.

The black hole pictured is at the center of a massive galaxy in the nearby Virgo galaxy cluster called Messier 87.

Black holes occur when a star dies and the core collapses after a supernova explosion. The gravity of a black hole is so strong that light cannot escape.



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https://thehill.com/homenews/news/438190-scientists-capture-first-ever-image-of-a-black-hole
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Offline Gefn

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Re: Scientists capture first-ever image of a black hole
« Reply #1 on: April 10, 2019, 01:53:37 pm »
Wow
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Offline thackney

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Re: Scientists capture first-ever image of a black hole
« Reply #2 on: April 10, 2019, 01:54:32 pm »
https://www.nytimes.com/2019/04/10/science/black-hole-picture.html

...The image emerged from two years of computer analysis of observations from a network of radio antennas called the Event Horizon Telescope. In all, eight radio observatories on six mountains and four continents observed the galaxies Sagittarius and Virgo on and off for 10 days in April 2017.

The network is named after the edge of a black hole, the point of no return; beyond the event horizon, not even light can escape the black hole’s gravitational pull.

For some years now, the scientific literature, news media and films such as “Interstellar” and the newly released “High Life” have featured remarkably sophisticated and highly academic computer simulations of black holes. But the real thing looked different. For starters, the black holes in movies typically are not surrounded by fiery accretion disks of swirling, doomed matter, as are the black holes in Virgo and Sagittarius.

Perhaps even more important, the images provide astrophysicists with the first look at the innards of a black hole. The energy within is thought to be powerful enough to power quasars and other violent phenomena from the nuclei of galaxies, including the jets of intense radiation that spew 5,000 light years from the galaxy M87.

As hot, dense gas swirls around the black hole, like water headed down a drain, the intense pressures and magnetic fields cause energy to squirt from either side. As a paradoxical result, supermassive black holes, which lurk in the centers of galaxies, can be the most luminous objects in the universe....
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Offline Sanguine

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Re: Scientists capture first-ever image of a black hole
« Reply #3 on: April 10, 2019, 01:56:18 pm »
"The gravity of a black hole is so strong that light cannot escape."

Obviously that's not completely true if they got a picture of it.

Offline thackney

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Re: Scientists capture first-ever image of a black hole
« Reply #4 on: April 10, 2019, 02:01:11 pm »
"The gravity of a black hole is so strong that light cannot escape."

Obviously that's not completely true if they got a picture of it.

Well, they didn't actually get a picture of the black hole itself.  They got a picture of everything around it and lack of light from it.
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Offline Sanguine

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Re: Scientists capture first-ever image of a black hole
« Reply #5 on: April 10, 2019, 02:07:14 pm »
Well, they didn't actually get a picture of the black hole itself.  They got a picture of everything around it and lack of light from it.

I admit I didn't read the NYT article, because I despise NYT, but according to The Hill article:

Quote
The photo is the culmination of years of work and the Event Horizon Telescope, a group of eight telescopes stationed across the globe. The telescopes captured whatever light it could detect near the black hole, and the data was then combined into the image.

Offline Gefn

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Re: Scientists capture first-ever image of a black hole
« Reply #6 on: April 10, 2019, 02:12:49 pm »
"The gravity of a black hole is so strong that light cannot escape."

Obviously that's not completely true if they got a picture of it.

Now I think white holes are possible
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Offline Ghost Bear

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Re: Scientists capture first-ever image of a black hole
« Reply #7 on: April 10, 2019, 02:13:32 pm »
Looks like a glazed doughnut...

Let it burn.

Offline Sanguine

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Re: Scientists capture first-ever image of a black hole
« Reply #8 on: April 10, 2019, 02:14:43 pm »
Now I think white holes are possible

We do live in a yin and yang kind of universe.


Offline thackney

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Re: Scientists capture first-ever image of a black hole
« Reply #9 on: April 10, 2019, 05:02:23 pm »
I admit I didn't read the NYT article, because I despise NYT, but according to The Hill article:

The telescopes captured whatever light it could detect near the black hole, and the data was then combined into the image.

The image is of the light around the black hole.  It is not of the black hole itself, regardless of the misleading headline.
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