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Astronomy Picture of the Day -- The Cloudy Cores of Active Galaxies
NASA ^ | February 24, 2014 | (see photo credit)

Posted on 02/24/2014 7:11:57 PM PST by SunkenCiv

Explanation: What would it look like to travel to the center of an active galaxy? Most galactic centers are thought to house black holes millions of times more massive than our Sun. The spaces surrounding these supermassive black holes may be far from dormant, however, flickering in many colors and earning the entire object class the title of Active Galactic Nuclei (AGN). Pictured above is a video illustrating how an active galactic nucleus may appear up close. AGN typically sport massive accretion disks feeding the central black hole, as well as powerful jets shooting electrically charged matter far into the surrounding universe. Clouds of gas and dust seen orbiting the central black holes have recently been found to be so dense that they intermittently eclipse even penetrating x-rays from reaching us. These X-ray dimming events, as short as hours but as long as years, were detected in an analysis encompassing over a decade of data taken by the NASA's orbiting Rossi X-ray Timing Explorer (RXTE).

February 24, 2014

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; science
[Credit: NASA's GSFC, W. Steffen (UNAM)]

1 posted on 02/24/2014 7:11:57 PM PST by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...
The Big One

2 posted on 02/24/2014 7:15:47 PM PST by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
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To: SunkenCiv

Nice...


3 posted on 02/24/2014 7:18:49 PM PST by ButThreeLeftsDo (Support Free Republic!!!)
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To: SunkenCiv

In the grand scheme of God, if the center of a Galaxy is the nucleus and the surround Stars electrons; There is more to learn than there is paper and thought contained for all humans on our entire planet. Makes me wonder how worlds contain the libraries of Heaven.


4 posted on 02/24/2014 7:21:25 PM PST by no-to-illegals (Scrutinize our government and Secure the Blessing of Freedom and Justice)
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minor correction ... Makes me wonder how many worlds it takes to contain the libraries of Heaven.


5 posted on 02/24/2014 7:22:30 PM PST by no-to-illegals (Scrutinize our government and Secure the Blessing of Freedom and Justice)
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To: SunkenCiv

He seeks the precious.


6 posted on 02/24/2014 7:28:55 PM PST by ClearCase_guy
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