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Stony meteorites reveal the timing of Jupiter’s migration
Astronomy Magazine ^ | 13 Dec, 2016 | K.N. Smith

Posted on 12/14/2016 7:57:55 PM PST by MtnClimber

Home/News/Stony meteorites reveal the timing of Jupiter’s migration 941 Stony meteorites reveal the timing of Jupiter’s migration The gas giant caused iron-vaporizing collisions in the asteroid belt 5 million years ago.

By K.N. Smith | Published: Tuesday, December 13, 2016 JUPITER_proccessed_image An artist's rendering of Jupiter WikiMedia Commons/ Ukstillalive The youngest stony meteorites in the solar system may reveal when Jupiter migrated through the asteroid belt. These meteors contain grains of metal that can only be the remnant of high-velocity collisions driven by Jupiter’s gravitational influence.

New evidence comes from a rare group of meteorites called CB chondrites. Formed around 4.8 to 5 million years ago, they’re the product of objects slamming into each other at very high speeds in the wild early days of the solar system. CB chondrites contain grains of iron and nickel whose structure means they must have condensed directly from a vapor to solid form. Those tiny irregular grains of condensed metal were once part of the iron-nickel cores of rocky objects in the early solar system, and their presence points to a series of high-speed collisions between those objects, with enough shock and heat to vaporize iron.

Our solar system didn’t always look like it does now. The gas giants may have begun their lives much closer to the Sun and then migrated outward, or they may have made only a brief venture inward before retreating again. The evidence of the gas giants’ migration is etched in the solar system they left behind – the composition and dynamics of the rocky objects of the inner solar system.

(Excerpt) Read more at astronomy.com ...


TOPICS: Astronomy; Science
KEYWORDS: astronomy; catastrophism; chondrites; deusexmachina; grandtackhypothesis; jupiter; science

1 posted on 12/14/2016 7:57:55 PM PST by MtnClimber
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To: MtnClimber

Interesting theories.


2 posted on 12/14/2016 7:58:28 PM PST by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber

Thanks for posting this!


3 posted on 12/14/2016 8:21:58 PM PST by txnativegop (Nothing sarcastic comes to mind. Well it does, but I'll be nice and not say it.)
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To: MtnClimber
Bah.

"The Martian Race had encountered the people of the fifth planet, grokked them completely, and in due course had taken action; the asteroid ruins were all that remained, save that the Martians continued to cherish and praise the people they had destroyed. This new work of art was one of many attempts to grok all parts of the whole beautiful experience in all its complexity in one opus. But before it could be judged it was necessary to grok how to judge it."

So says Heinlein in "Stranger in a Strange Land."

4 posted on 12/14/2016 8:29:58 PM PST by IndispensableDestiny
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To: MtnClimber
Stony meteorites reveal the timing of Jupiter’s migration The gas giant caused iron-vaporizing collisions in the asteroid belt 5 million years ago.

The "million" in the article is spelled with a "b." It's also spelled wrong in the title of the piece at the site.

None of us would be typing here tonight if Jupiter had moved through the asteroid belt as recently as a few million years ago.

5 posted on 12/14/2016 8:39:07 PM PST by FredZarguna (And what Rough Beast, its hour come 'round at last, slouches toward Fifth Avenue to be born?)
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To: All

Just more evidence for the Climate Changers. They’ll point to this. Mark my words.


6 posted on 12/14/2016 8:58:55 PM PST by BipolarBob
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To: FredZarguna

None of us would be typing here tonight if Jupiter had moved through the asteroid belt as recently as a few million years ago.


I was thinking 5 million years ago is the blink of an eye in celestial time. The age of dinosaurs was 75 million years ago. To have Jupiter careening around the asteroid belt only 5 million years ago would have caused catastrophic meteor showers on earth.


7 posted on 12/14/2016 9:45:52 PM PST by Flick Lives (Les Deplorables Triumphant)
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To: MtnClimber

How does it affect cher?


8 posted on 12/14/2016 11:19:15 PM PST by doug from upland (Hillary, get the hell off the stage!)
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To: Flick Lives
Correct.

It likely also pulled the inner planets deeper into space along with it as it moved, helping to make the Earth (eventually) habitable.

The article makes it clear that the timeline of Jupiter and Saturn's movements from nearer to further orbits happened (according to this theory) in the formative stages of the solar system. That would be 4.5 - 5 billion years ago.

The fact that the article writer got it wrong in the title, and in the first paragraph of the article as well, means it's unlikely to have been a typo, and is a sad commentary on the quality of science writing in the early 21st century.

9 posted on 12/15/2016 12:02:03 AM PST by FredZarguna (And what Rough Beast, its hour come 'round at last, slouches toward Fifth Avenue to be born?)
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To: FredZarguna; Flick Lives

Jupiter “collected” those nasty asteroids billions of years ago. Such serendipitous, multiple events make me certain we are alone in the Cosmos.


10 posted on 12/15/2016 2:34:57 AM PST by Does so ("The business of america is business"—President Calvin Coolidge...)
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To: Does so

“Such serendipitous, multiple events make me certain we are alone in the Cosmos.”

A Comos consisting of uncountable trillions of stars? What would be the point of that?


11 posted on 12/15/2016 3:45:24 AM PST by PIF (They came for me and mine ... now it is your turn ...)
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To: MtnClimber
Formed around 4.8 to 5 million years ago

I'll take a 'b', Pat.

12 posted on 12/15/2016 3:50:53 AM PST by Lonesome in Massachussets (Psephomancers for Hillary!)
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To: 75thOVI; Abathar; agrace; aimhigh; Alice in Wonderland; AnalogReigns; AndrewC; aragorn; ...
Note: this topic is from 12/14/2016. Thanks MtnClimber.
KEYWORDS: catastrophism; deusexmachina; grandtackhypothesis; jupiter

13 posted on 09/01/2019 10:38:10 PM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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To: SunkenCiv

14 posted on 09/01/2019 10:43:29 PM PDT by BenLurkin (The above is not a statement of fact. It is either opinion or satire. Or both.)
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To: BenLurkin
Thanks, nice graphic! although of course a gradualist model is a klunky, kludgy, cherry-pickin' model.

15 posted on 09/01/2019 11:39:40 PM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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To: BenLurkin

Thanks again. I added the grand tack kw to a few more topics yesterday.


16 posted on 09/02/2019 12:11:32 PM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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To: doug from upland

She wishes she could have turned back time.


17 posted on 09/02/2019 4:49:58 PM PDT by Redcitizen (Tagline not secure.)
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This topic was posted 12/14/2016, thanks MtnClimber.
Sorted Jupiter keyword, minus the non-astronomy topics (I think I found them all):

18 posted on 12/07/2021 11:50:52 AM PST by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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19 posted on 12/07/2021 11:52:46 AM PST by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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