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Astronomy Picture of the Day -- M81 versus M82
NASA ^ | September 25, 2013 | (see photo credit)

Posted on 09/25/2013 12:54:13 AM PDT by SunkenCiv

Explanation: Here in the Milky Way galaxy we have astronomical front row seats as M81 and M82 face-off, a mere 12 million light-years away. Locked in a gravitational struggle for the past billion years or so, the two bright galaxies are captured in this deep telescopic snapshot, constructed from 25 hours of image data. Their most recent close encounter likely resulted in the enhanced spiral arms of M81 (left) and violent star forming regions in M82 so energetic the galaxy glows in X-rays. After repeated passes, in a few billion years only one galaxy will remain. From our perspective, this cosmic moment is seen through a foreground veil of the Milky Way's stars and clouds of dust. Faintly reflecting the foreground starlight, the pervasive dust clouds are relatively unexplored galactic cirrus, or integrated flux nebulae, only a few hundred light-years above the plane of the Milky Way.

September 25, 2013

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; m81; m82; messierobjects; science
[Credit & Copyright: Ivan Eder]

1 posted on 09/25/2013 12:54:13 AM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...
The Big One

2 posted on 09/25/2013 12:54:33 AM PDT by SunkenCiv (It's no coincidence that some "conservatives" echo the hard left.)
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To: SunkenCiv

Prayers going up for all the poor people in those galaxies that are going to collide.


3 posted on 09/25/2013 1:07:51 AM PDT by FredZarguna (With bell, book, and candle, please.)
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To: SunkenCiv

Thanks for the ping


4 posted on 09/25/2013 2:30:25 AM PDT by Las Vegas Dave (There are leaders and there are followers-all the rest should get out of the way!)
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To: FredZarguna

The same thing’s going to happen here when Andromeda arrives.


5 posted on 09/25/2013 2:32:59 AM PDT by Little Pig (Vi Veri Veniversum Vivus Vici.)
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To: FredZarguna
Prayers going up for all the poor people in those galaxies that are going to collide.

If they only reduced their carbon footprint, this never would have happened!

6 posted on 09/25/2013 2:49:13 AM PDT by Erik Latranyi (When religions have to beg the gov't for a waiver, we are already under socialism.)
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To: FredZarguna

The impact on any single star system will be minimal, just the celestial scenery will change. The stars are separated by the same kind of distances as in our own galaxy.


7 posted on 09/25/2013 3:52:02 AM PDT by Lonesome in Massachussets (Doing the same thing and expecting different results is called software engineering.)
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To: Lonesome in Massachussets

It was a joke.


8 posted on 09/25/2013 9:50:08 AM PDT by FredZarguna (With bell, book, and candle, please.)
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To: Erik Latranyi

Gore’bon, the Magnificent, had been warning them for the last 500 million years...


9 posted on 09/25/2013 9:51:45 AM PDT by FredZarguna (With bell, book, and candle, please.)
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To: FredZarguna

Sometimes, it’s hard to tell.


10 posted on 09/25/2013 10:08:34 AM PDT by Lonesome in Massachussets (Doing the same thing and expecting different results is called software engineering.)
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To: Lonesome in Massachussets

Understood. I just can’t do the whole smiley thing.


11 posted on 09/25/2013 10:10:16 AM PDT by FredZarguna (With bell, book, and candle, please.)
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