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We Now Have Proof a Supernova Exploded Perilously Close to Earth 2.5 Million Years Ago
www.sciencealert.com ^ | 4 OCTOBER 2020 | EVAN GOUGH, UNIVERSE TODAY

Posted on 10/05/2020 11:50:05 AM PDT by Red Badger

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To: TwilightDog

Space dust, micro meteoroids, I would assume fell upon the earth a million years ago, or so.........................


21 posted on 10/05/2020 12:25:02 PM PDT by Red Badger (Sine Q-Anon.....................very............)
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To: Red Badger

Read a paper once that explained how the location of our solar system in one of the arms of the Milky Way was in pretty much the “sweet spot” for the possibility of life on Earth.

For stars located too close to the center of the galaxy, with a relatively heavy population of stars, the occurrence of nearby supernova is too common (even if only a couple of times every million years) to allow the evolution of living systems.

For stars located too far out on the spiral arms, nearby supernovae are too rare to allow the accumulation of significant amounts of elements higher in atomic number than iron - and a variety of those elements are absolute requirements for the kind of living systems found on Earth.

But if you’re in exactly the right location - and their hypothesis was we are - you get just the right occurrence of nearby supernovae to allow the incredbiy long period of time it takes to get to sentient creatures.


22 posted on 10/05/2020 12:26:34 PM PDT by Stosh
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To: Stosh

Yes, almost as if it was ‘planned’...............................


23 posted on 10/05/2020 12:27:38 PM PDT by Red Badger (Sine Q-Anon.....................very............)
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To: Red Badger

Let’s go ask Nancy Pelosi what it looked like.


24 posted on 10/05/2020 12:28:10 PM PDT by blueunicorn6 ("A crack shot and a good dancer”)
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To: Red Badger

Were “Women and minorities affected the worst” than white males by this event?


25 posted on 10/05/2020 12:32:38 PM PDT by GreyFriar (Spearhead - 3rd Armored Division 75-78 & 83-87)
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To: logi_cal869

This is old news


26 posted on 10/05/2020 12:36:02 PM PDT by campaignPete R-CT (Committee to Re-Elect the President ( CREEP ))
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To: Red Badger

That blowed up real good.


27 posted on 10/05/2020 12:36:44 PM PDT by rdl6989
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To: TwilightDog

Cosmic rays are produced from massive galactic events like a supernovae and consist of matter particles like Fe or Mn that have additional neutrons making them radioactive.

The explosion accelerates the particles to nearly the speed of light. If the SN was 10,000 light years away it would take about 10,000 years for the particles to get here. In addition because they are traveling at nearly the speed of light they would not appear to “decay” relative to our Earth clocks which are at rest.

Once the particles arrived at the Earth and came to rest they began to decay. From the known half-life of these isotopes that was about 2.6 billion years ago.


28 posted on 10/05/2020 1:07:21 PM PDT by Dave Wright
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To: Dave Wright
TwilightDog said, "how did these isotopes of manganese and iron traverse the distance between the earth and this supernova in a timeframe that would make it contemporaneous with the supernova event?

There is growing evidence it was a micro nova from our sun.

said, "Cosmic rays are produced from massive galactic events like a supernovae and consist of matter particles like Fe or Mn that have additional neutrons making them radioactive"

This has not been studied that I'm aware of. The two major near extinction of humans bottle necks of human population of 70,000 years ago and 12,800 years ago also had the effect of a Y Chromosome(Males) bottleneck right after the both events. Y Chromosome are more radiosensitive then the X chromosomes. As a result for thousands of years after both these events the female/male ratio was 6 to 1 and 17 to 1 respectively.

I'm suggesting a micro-nova from our sun could be that trigger.

29 posted on 10/05/2020 1:38:35 PM PDT by Steve Van Doorn (*in my best Eric Cartman voice* 'I love you, guys')
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To: Dave Wright

million y.a.


30 posted on 10/05/2020 1:39:09 PM PDT by UnbelievingScumOnTheOtherSide (Reverse Wickard v Filburn (1942) - and - ISLAM DELENDA EST)
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To: Red Badger

>So not only do we now know that there definitely was a SN explosion in Earth’s vicinity about 2.5 million years ago, we also have the very first detection of the unstable 55Mn isotope.

Typo 53Mn


31 posted on 10/05/2020 1:40:13 PM PDT by UnbelievingScumOnTheOtherSide (Reverse Wickard v Filburn (1942) - and - ISLAM DELENDA EST)
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To: Red Badger

Oddly enough, this puts it very close to the day of birth of one Nancy Pelosi....hmmmm…….


32 posted on 10/05/2020 1:42:47 PM PDT by griffin
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To: Steve Van Doorn
They're pretty sure that the 70kya bottleneck was caused by the eruption of the Toba supervolcano in Indonesia.

As a result for thousands of years after both these events the female/male ratio was 6 to 1 and 17 to 1 respectively.

Cue Dr. Strangelove reference ... "It vould not be difficult, mein Führer! ... I mean, Mr. President".

33 posted on 10/05/2020 1:59:20 PM PDT by Campion (What part of "shall not be infringed" don't they understand?)
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To: Red Badger

Looks more like chocolate cream pie


34 posted on 10/05/2020 2:45:40 PM PDT by NonValueAdded ("Sorry, your race card has been declined. Can you present any other form of argument?")
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To: bankwalker

Dang you found it first.


35 posted on 10/05/2020 3:05:42 PM PDT by Larry Lucido
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To: Disambiguator; bankwalker

Probably came from the Ford Galaxy.


36 posted on 10/05/2020 3:07:39 PM PDT by Larry Lucido
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To: Red Badger

Since nobody was around to see it then it is based 100% on theory.


37 posted on 10/05/2020 4:08:08 PM PDT by TonyM (Score Event)
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To: Steve Van Doorn

“As a result for thousands of years after both these events the female/male ratio was 6 to 1 and 17 to 1 respectively.”

I wonder if those events resulted in a genetic predisposition toward male promiscuity.


38 posted on 10/05/2020 4:28:35 PM PDT by dsc (Do not pray for easy lives; pray to be stronger men.)
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To: Red Badger

The cover story for the Hughes Glomar Explorer was it was going to mine manganese nodules from the sea floor.

The real purpose of the ship was to recover the Russian missile sub K-129, from a depth of 18,000 feet:

https://en.wikipedia.org/wiki/Project_Azorian


39 posted on 10/05/2020 4:40:44 PM PDT by JohnnyP (Thinking is hard work (I stole that from Rush).)
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To: Red Badger
I saw this bright light in the sky.

Blnk
40 posted on 10/05/2020 5:51:27 PM PDT by minnesota_bound (homeless guy. He just has more money....He the master will plant more cotton for the democrat party)
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