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A Supernova Exploded Dangerously Close to Earth 2.5 Million Years Ago
Universe Today ^ | 2 Oct, 2002 | EVAN GOUGH

Posted on 10/03/2020 5:51:30 AM PDT by MtnClimber

click here to read article


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To: MtnClimber

2.5 million years ago....aight, kkthx for that bit of unimportant information. Science ftw, as par.


21 posted on 10/03/2020 6:58:32 AM PDT by cranked
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To: MtnClimber

Will they make us all wear a mask and social distance because of this?????


22 posted on 10/03/2020 7:05:18 AM PDT by RatRipper ( Democrats and socialists are vile liars, thieves and murderers - enemies of good and America.)
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To: MtnClimber

Any idea of the source?


23 posted on 10/03/2020 7:06:42 AM PDT by Buttons12
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To: ought-six

I missed it. But then, I can sleep through my alarm clock beeping.


24 posted on 10/03/2020 7:11:31 AM PDT by DE50AE
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To: MtnClimber

I thought I felt a disturbance in The Force


25 posted on 10/03/2020 7:12:39 AM PDT by VeniVidiVici
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To: VeniVidiVici


Fluke Starbucker : Jeepers! What is it, Augie Ben Doggie? Did you feel a great disturbance in the Force, as if millions of voices cried out in terror and were suddenly silenced?

Auggie Ben Doggie : No, just a little headache.
26 posted on 10/03/2020 7:15:06 AM PDT by dfwgator (Endut! Hoch Hech!)
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To: ought-six
I remember that one; I just got a slight sunburn.

Partner, LMAO. BTW, great post.

27 posted on 10/03/2020 7:23:35 AM PDT by TheConservativeTejano (God Bless Texas..)
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To: ought-six
I remember that one; I just got a slight sunburn.

Partner, LMAO. Great post.

28 posted on 10/03/2020 7:25:42 AM PDT by TheConservativeTejano (God Bless Texas..)
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To: MtnClimber

The photos are really amazing.


29 posted on 10/03/2020 7:35:42 AM PDT by ridesthemiles
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To: MtnClimber

I wondered why the dishes in the cupboard were rattling.


30 posted on 10/03/2020 7:36:24 AM PDT by lurk
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To: Buttons12

“But accelerator mass spectrometry is so sensitive that it even allows us to calculate from our measurements that the star that exploded must have had around 11 to 25 times the size of the sun,” Korschinek added.

It was too far away to cause a mass extinction, but it likely did shower the Earth with cosmic rays. That likely affected the climate.

“However, this can lead to increased cloud formation,” says co-author Dr. Thomas Faestermann. “Perhaps there is a link to the Pleistocene epoch, the period of the Ice Ages, which began 2.6 million years ago.”

So while it may not have been ultra-calamitous for Earth, it did have an effect.

Some researchers think that the supernova explosion at that time did trigger at least a partial extinction, called the Pliocene marine megafauna extinction. They point to not only the presence of elevated levels of 60Fe, but also to a feature out in space called the Local Bubble. It’s a gigantic, cavernous hole in the interstellar medium caused by one or more supernovae explosions. Now, the discovery of 53Mn just strengthens that hypothesis.

The Megalodon, a bus-sized shark and one of the largest predators to have ever lived (the) supernova explosion may have caused its extinction, along with other megafauna, during the Pliocene marine megafauna extinction.


But no specific stellar location is mentioned in the article


31 posted on 10/03/2020 7:40:25 AM PDT by PIF (They came for me and mine ... now its your turn)
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To: ought-six

I was pissed no Kodachrome!


32 posted on 10/03/2020 8:05:03 AM PDT by Mastador1
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To: PIF
The Megalodon, a bus-sized shark and one of the largest predators to have ever lived (the) supernova explosion may have caused its extinction

Seems to me we at least owe the supernova a “thank you” letter...

33 posted on 10/03/2020 8:31:02 AM PDT by rhinohunter (FAUCI MUST GO!!!)
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To: PIF

I read the article. I was looking for coordinates.


34 posted on 10/03/2020 8:33:44 AM PDT by Buttons12
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To: PIF

There are plenty of supernova remnants that have been mapped...guess this one hasn’t.


35 posted on 10/03/2020 8:34:35 AM PDT by Buttons12
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To: MtnClimber

“Now, a new study presents additional evidence of a supernova explosion near Earth 2.5 million years ago”

I remember that one. The Democrats immediately proposed a green energy bill and higher taxes.
They blamed excessive energy use on earth for the catastrophe.


36 posted on 10/03/2020 8:39:59 AM PDT by HereInTheHeartland (Leave me alone, I have no incriminating evidence on the Clintons)
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To: rhinohunter

(the) supernova explosion may have caused its extinction

Seems to me we at least owe the supernova a “thank you” letter...


Nah it was over fishing - the regulations in those days were pretty lenient ...


37 posted on 10/03/2020 9:41:03 AM PDT by PIF (They came for me and mine ... now its your turn)
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To: MtnClimber

“Numerous catastrophes have imperiled the planet, from massive impacts, to volcanic conflagrations, to frigid episodes of snowball Earth.”

SNOWBALL EARTH!!!???

Wait! What!!!

The earth has not always been the same perfect ideal average temperature it is now!!??

But..but...but...


38 posted on 10/03/2020 12:06:01 PM PDT by Jotmo (Whoever said, "The pen is mightier than the sword." has clearly never been stabbed to death.)
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To: MtnClimber
" This time, its a concentration of 53Mn, another radioisotope produced by supernovae."

Hmmm... Lately, I've been assuming that 53MN was code for the 53,000 Somalians resettled or anchor-babied in MN each year between 2008 and 2020...

39 posted on 10/03/2020 12:13:08 PM PDT by SuperLuminal (Where is Sam Adams now that we desperately need him)
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To: MtnClimber

OR

https://www.bing.com/videos/search?q=hydroplate+theory+youtube&docid=608032065013023603&mid=2471CC61BDC3B99CEEEC2471CC61BDC3B99CEEEC&view=detail&FORM=VIRE


40 posted on 10/03/2020 12:25:44 PM PDT by BrandtMichaels
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