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Astronomy Picture of the Day -- Io's Surface: Under Construction
NASA ^ | August 04, 2013 | (see photo credit)

Posted on 08/03/2013 10:20:09 PM PDT by SunkenCiv

Explanation: Like the downtown area of your favorite city and any self-respecting web site ... Io's surface is constantly under construction. This moon of Jupiter holds the distinction of being the Solar System's most volcanically active body -- its bizarre looking surface continuously formed and reformed by lava flows. Generated using 1996 data from NASA's Galileo spacecraft, this high resolution composite image is centered on the side of Io that always faces away from Jupiter. It has been enhanced to emphasize Io's surface brightness and color variations, revealing features as small as 1.5 miles across. The notable absence of impact craters suggests that the entire surface is covered with new volcanic deposits much more rapidly than craters are created. What drives this volcanic powerhouse? A likely energy source is the changing gravitational tides caused by Jupiter and the other Galilean moons as Io orbits the massive gas giant planet. Heating Io's interior, the pumping tides would generate the sulfurous volcanic activity.

August 04, 2013

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; galileanmoons; galileo; jupiter; science
[Credit: Galileo Project, JPL, NASA]

1 posted on 08/03/2013 10:20:09 PM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...

Looks unhealthy and creepy. :'o
The Big One

2 posted on 08/03/2013 10:20:47 PM PDT by SunkenCiv (It's no coincidence that some "conservatives" echo the hard left.)
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To: SunkenCiv

I think I see Obama’s birth certificate.


3 posted on 08/03/2013 10:21:10 PM PDT by Jonty30 (What Islam and secularism have in common is that they are both death cults)
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To: SunkenCiv

Close up of a zit.


4 posted on 08/03/2013 10:30:56 PM PDT by elephantlips
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To: shibumi

All these worlds are yours except Europa ping.


5 posted on 08/03/2013 10:39:57 PM PDT by Salamander (.......Uber Alice!.......)
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To: elephantlips

Moldy cheese.

[elephant lips? LMAO]


6 posted on 08/03/2013 10:41:01 PM PDT by Salamander (.......Uber Alice!.......)
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To: SunkenCiv
Jupiter is the elephant in the living room. In fact, this is a previous APOD:


7 posted on 08/03/2013 10:53:05 PM PDT by dr_lew
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To: dr_lew

It’s amazing those moons don’t get sucked into Jupiter just by sheer force of gravity.


8 posted on 08/03/2013 11:14:04 PM PDT by fieldmarshaldj (Resist We Much)
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To: SunkenCiv

Them Ioians must be tough bunch :)


9 posted on 08/03/2013 11:30:16 PM PDT by The Cajun (Sarah Palin, Mark Levin, Ted Cruz......Nuff said.)
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To: SunkenCiv

What a miracle all our lives are. Grab those you love and don’t let go. Love them. Make your every moment count.


10 posted on 08/03/2013 11:31:42 PM PDT by montag813 (NO AMNESTY * ENFORCE THE LAW * http://StandWithArizona.com)
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To: fieldmarshaldj

Something I just learned, and it’s right on Wikipedia, is that all this tidal heating of Io and Europa is due to the stable interlocked orbits of Io, Europa, and Ganymede, with periods in the ratio 1:2:4 . ( Callisto is far enough away not to be locked in, and is effectively a “loner” . )

Any one of these moons, alone, would settle into a fixed circular orbit without any variable tidal forces, but all together they constantly tug each other back and forth in a stable but dissipative pattern.

Well, it makes sense to me!


11 posted on 08/03/2013 11:44:00 PM PDT by dr_lew
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To: The Cajun; montag813

Never, ever play pull my finger with someone from Io.


12 posted on 08/03/2013 11:50:30 PM PDT by SunkenCiv (It's no coincidence that some "conservatives" echo the hard left.)
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To: dr_lew

Wikipedia is amazing for what you learn. I learned there that the singer formerly known as Terence Trent D’Arby breaks wind uncontrollably at the sight of monkeys. Good thing Io doesn’t look like a monkey.


13 posted on 08/03/2013 11:58:35 PM PDT by fieldmarshaldj (Resist We Much)
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To: dr_lew

twice, even. :’)

http://apod.nasa.gov/apod/ap001226.html
http://apod.nasa.gov/apod/ap021207.html


14 posted on 08/04/2013 12:02:16 AM PDT by SunkenCiv (It's no coincidence that some "conservatives" echo the hard left.)
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To: fieldmarshaldj

They will someday. The two moons of Mars, Phobos and Demos will crash into the planet eventually as well.


15 posted on 08/04/2013 12:07:48 AM PDT by jmacusa (Political correctness is cultural Marxism. I'm not a Marxist.)
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To: fieldmarshaldj; dr_lew

Gotcha! Jupiter Turned Comet into a Moon
http://www.freerepublic.com/focus/chat/2339448/posts

Location Made Twin Moons Different [Ganymede, Callisto]
http://www.freerepublic.com/focus/chat/2438961/posts

Probe spies moon’s volcanic plume (Jupiter’s moon, Io)
http://www.freerepublic.com/focus/chat/1793158/posts

and wth:

Saturn’s sixtieth moon discovered
http://www.freerepublic.com/focus/chat/1869432/posts


16 posted on 08/04/2013 12:07:56 AM PDT by SunkenCiv (It's no coincidence that some "conservatives" echo the hard left.)
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To: SunkenCiv
Io looks like an orange that got stuck behind the refrigerator for a couple of weeks.
17 posted on 08/04/2013 12:08:58 AM PDT by jmacusa (Political correctness is cultural Marxism. I'm not a Marxist.)
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To: jmacusa; fieldmarshaldj

No, they won’t. Two of Jupiter’s prograde moons will:

http://www.seasky.org/solar-system/jupiter-moons.html

The retrograde moons and numerous retrograde moonlets may eventually crash into Jupiter, or they may be ejected from the system.

Phobos will eventually crash into Mars, Deimos probably won’t. They must have been captured by Mars, but no one has come up with the math to satisfy everyone else working on the problem.

http://nineplanets.org/phobos.html

http://nineplanets.org/deimos.html


18 posted on 08/04/2013 12:23:35 AM PDT by SunkenCiv (It's no coincidence that some "conservatives" echo the hard left.)
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To: jmacusa

You’re juice saying that.


19 posted on 08/04/2013 12:25:10 AM PDT by SunkenCiv (It's no coincidence that some "conservatives" echo the hard left.)
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To: SunkenCiv
Neptunes moon Triton is a ‘’captured moon’’ and rotates opposite to it's host, that is counter-clockwise. Which tells me, an amateur astronomer that Triton must have come from farther out in our solar system, maybe at the edge of it. And on a down note our galaxy, the Milky Way is on a collision course with the Andromeda Galaxy. As we speak we're racing towards each other at nearly 4000,000 mph. But as we're some two million, three hundred thousand light years apart, it'll be a while.
20 posted on 08/04/2013 12:31:33 AM PDT by jmacusa (Political correctness is cultural Marxism. I'm not a Marxist.)
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To: SunkenCiv

LOL!


21 posted on 08/04/2013 12:32:16 AM PDT by jmacusa (Political correctness is cultural Marxism. I'm not a Marxist.)
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To: jmacusa
As we speak we're racing towards each other at nearly 4000,000 mph.

Dang that's fast, it even done blown a coma off the speed!

22 posted on 08/04/2013 1:48:06 AM PDT by The Cajun (Sarah Palin, Mark Levin, Ted Cruz......Nuff said.)
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To: fieldmarshaldj
THAT dear FRiend, is the finger of God.

I use the non collapsing atom often to describe Him.

The nucleus primarily positive circled by negative electrons ... should collapse into itself (unlike poles attract .. etc.)

23 posted on 08/04/2013 2:08:21 AM PDT by knarf (I say things that are true ... I have no proof ... but they're true)
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To: The Cajun

The Ionians are Tough on a Major Scale.


24 posted on 08/04/2013 4:37:19 AM PDT by left that other site (You Shall Know the Truth, and the Truth Shall Set You Free...John 8:32)
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To: The Cajun

It’s Just Their Mode of Thinking.


25 posted on 08/04/2013 4:38:05 AM PDT by left that other site (You Shall Know the Truth, and the Truth Shall Set You Free...John 8:32)
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To: dr_lew
That is cool!
26 posted on 08/04/2013 8:44:32 AM PDT by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both.)
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To: The Cajun

Sure fire is cuzin! Much obliged fer bringing it to my attention.


27 posted on 08/04/2013 9:59:29 AM PDT by jmacusa (Political correctness is cultural Marxism. I'm not a Marxist.)
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To: jmacusa
Sure fire is cuzin! Much obliged fer bringing it to my attention.

Just funning, I make a typo about every third post :)

28 posted on 08/04/2013 11:07:23 AM PDT by The Cajun (Sarah Palin, Mark Levin, Ted Cruz......Nuff said.)
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To: SunkenCiv

IOS Surface? What about the iPad ??


29 posted on 08/04/2013 7:01:37 PM PDT by mikrofon (Oh -- wrong bash thread ...)
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