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Astronomy Picture of the Day
NASA ^ | 11/04/09 | Alan Friedman (Averted Imagination)

Posted on 11/04/2009 9:56:08 AM PST by sig226


Blue Sun Bristling Credit & Copyright: Alan Friedman (Averted Imagination)

Explanation: Our Sun may look like all soft and fluffy, but it's not. Our Sun is an extremely large ball of bubbling hot gas, mostly hydrogen gas. The above picture of our Sun was taken last month in a specific red color of light emitted by hydrogen gas called Hydrogen-alpha and then color inverted to appear blue. In this light, details of the Sun's chromosphere are particularly visible, highlighting numerous thin tubes of magnetically-confined hot gas known as spicules rising from the Sun like bristles from a shag carpet. Our Sun glows because it is hot, but it is not on fire. Fire is the rapid acquisition of oxygen, and there is very little oxygen on the Sun. The energy source of our Sun is the nuclear fusion of hydrogen into helium deep within its core. No sunspots or large active regions were visible on the Sun this day, although some solar prominences are visible around the edges.


TOPICS: Astronomy Picture of the Day
KEYWORDS: apod

1 posted on 11/04/2009 9:56:09 AM PST by sig226
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To: null and void; fnord; Number57; KevinDavis; rdb3; MNJohnnie; RightWhale; proudofthesouth; ...

2 posted on 11/04/2009 9:56:53 AM PST by sig226 (My President was President of the week at the Norwegian Slough Academy.)
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To: sig226

WOW!!! Very cool!


3 posted on 11/04/2009 10:02:30 AM PST by Reaganesque ("And thou shalt do it with all humility, trusting in me, reviling not against revilers.")
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To: sig226
The energy source of our Sun is the nuclear fusion

Run and hide, won't anybody think of the children.

All silliness aside, that is an outstanding photo.

4 posted on 11/04/2009 10:08:14 AM PST by DYngbld (I have read the back of the Book and we WIN!!!!)
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To: sig226

GORGEOUS!!


5 posted on 11/04/2009 10:25:49 AM PST by redhead (They are running SCARED, folks! :o) Check out the Halfbaked Sourdough at mukluk.wordpress.com)
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To: sig226

AHHHHH! Galactic warming caused by human disregard for the environment!


6 posted on 11/04/2009 10:34:07 AM PST by AngryAmerican
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To: sig226

Looks like a micopic of a female egg.


7 posted on 11/04/2009 10:37:59 AM PST by Renegade (You go tell my buddies om Planet' and " Battle of the Worlds " on Blu-ray ?)
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