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(Science Alert)   Never, until now, had an aurora been detected on a comet   (sciencealert.com) divider line
    More: Cool  
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550 clicks; posted to Fandom » on 22 Sep 2020 at 7:44 PM (4 weeks ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook



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2020-09-22 7:55:38 PM  
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Given how 2020's gone so far, I wouldn't be surprised.
 
2020-09-22 7:55:50 PM  
I guess Oldsmobile had one more tick in their pocket.
 
2020-09-22 8:11:31 PM  
Considering that Santa's reindeer live at the North Pole,
it should be expected that the Aurora Borealis would have an encounter with . . .

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2020-09-22 8:34:57 PM  
Wild.
 
2020-09-22 8:36:55 PM  
Pfft, I have gigs of "documentary footage" of Aurora on top of Comet.
 
2020-09-22 8:54:57 PM  
Today I learned:

You do not need a magnetic field to generate an aurora. Venus does not generate a magnetic field and it rotates once every 253 days yet its upper atmosphere when stimulated by the solar winds generates a weak aurora.

/well how about that.....
 
2020-09-22 8:55:07 PM  
At this time of year, at this time of day, at this part of the galaxy, localized entirely within your comet?!
 
2020-09-22 11:55:56 PM  
Wild stuff.
-Johnny Carson
 
2020-09-23 4:58:35 PM  
"Finding auroras around 67P, which lacks a magnetic field, is surprising and fascinating."

It lacks a magnetic field, but the comet carries a more negative charge than the surrounding medium.
 
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