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Search for "Planet X" officially comes up empty (Oh yeah?)
(05-17-2018, 03:10 AM)Vianova Wrote: Some researchers, however, 
caution that Planet Nine may not be the only explanation for 2015 BP519’s strange orbit.

Michele Bannister   Hi
a planetary Sheep  astronomer from Queen’s University Belfast, in Ireland, 
{v-note -- she is a Canadian from Vancouver BC that writes pretty poetry}
who was not involved in the study, 
kind of involved on how itz revolved and evolved then eventually resolved.-EA
told Newsweek that while the latest findings were “a great discovery,” 
other scenarios could account for its tilt 
kind of involved on how itz revolved and evolved then eventually resolved. >>>

We would like to thank Andrew Vanderburg,

Ellen Price, Linn Eriksson, Melaine Saillenfest and Mike
Brown for many useful conversations. We would like
to thank Michele Bannister for useful discussions and
methods advice.
We would like to thank Konstantin
Batygin for his careful review of the manuscript and
suggestions that greatly improved this work. We thank
Marty Kandes and Mats Rynge for help running simulations
on Open Science Grid's high-throughput computing
resources (operated through XSEDE). J.C.B, S.J.H,
and L.M. are supported by the NSF Graduate Research
Fellowship Grant No. DGE 1256260.
https://arxiv.org/abs/1805.05355


[Image: avatar_345.jpg?dateline=1453569234] Sheep   Horsepoop

Planet Nein!-Stubeedoo
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Doh
Collective gravity, not Planet Nine, may explain the orbits of 'detached objects'
June 4, 2018, University of Colorado at Boulder


[Image: solarsystem.jpg]
Credit: CC0 Public Domain
Bumper car-like interactions at the edges of our solar system—and not a mysterious ninth planet—may explain the dynamics of strange bodies called "detached objects," according to a new study.



CU Boulder Assistant Professor Ann-Marie Madigan and a team of researchers have offered up a new theory for the existence of planetary oddities like Sedna. This minor planet orbits Earth's sun at a distance of 8 billion miles but appears separated from the rest of the solar system.

One theory for its unusual dynamics is that an as-of-yet-unseen ninth planet beyond Neptune may have disturbed the orbits of Sedna and other detached objects. But Madigan and her colleagues calculated that the orbits of Sedna and its ilk may result from these bodies jostling against each other and space debris in the outer solar system.

"There are so many of these bodies out there. What does their collective gravity do?" said Madigan of the Department of Astrophysical and Planetary Sciences (APS) and JILA. "We can solve a lot of these problems by just taking into account that question."

The researchers will present their findings on June 4 at a press briefing at the 232nd meeting of the American Astronomical Society, which runs from June 3-7 in Denver.

Detached objects like Sedna get their name because they complete humongous, circular orbits that bring them nowhere close to big planets like Jupiter or Neptune. How they got to the outer solar system on their own is an ongoing mystery.

Using computer simulations, Madigan's team came up with one possible answer. Jacob Fleisig, an undergraduate studying astrophysics at CU Boulder, calculated that these icy objects orbit the sun like the hands of a clock. The orbits of smaller objects, such as asteroids, however, move faster than the larger ones, such as Sedna.

"You see a pileup of the orbits of smaller objects to one side of the sun," said Fleisig, who is the lead author of the new research. "These orbits crash into the bigger body, and what happens is those interactions will change its orbit from an oval shape to a more circular shape."

In other words, Sedna's orbit goes from normal to detached entirely because of those small-scale interactions. The team's observations also fall in line with research from 2012, which observed that the bigger a detached object gets, the farther away its orbit becomes from the sun. Alexander Zderic, a graduate student in APS at CU Boulder, also co-authored the new research.

The findings may also provide clues around another phenomenon: the extinction of the dinosaurs. As space debris interacts in the outer solar system, the orbits of these objects tighten and widen in a repeating cycle. This cycle could wind up shooting comets toward the inner solar system—including in the direction of Earth—on a predictable timescale.

"While we're not able to say that this pattern killed the dinosaurs," Fleisig said, "it's tantalizing."

[Image: 1x1.gif] Explore further: How we discovered 840 minor planets beyond Neptune – and what they can tell us

Provided by: University of Colorado at Boulder


Read more at: https://phys.org/news/2018-06-gravity-pl...d.html#jCp
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...


Quote:Collective gravity, not Planet Nine, may explain the orbits of 'detached objects'  Doh

"There are so many of these bodies out there

What does their collective gravity do?"  Doh

said Madigan of the Department of Astrophysical and Planetary Sciences (APS) and JILA.


They want you to think small, 
all "bodies" far less than Sedna in size,
to MU69 style space boogers and smaller dinky asteroids.

This is what they don't want you to think.
I will rewrite their quote:


Quote:"There are so many of these dwarf planets,
oversize planetary bodies,
and smaller asteroid like bodies out there. 

What does their collective gravity do?" 


Their model in the first quote,
actually goes back to the original Planet X determinations,
similarly made by Dr. P. in the now ancient IRAS study he did on Planet X.
That would be Conley Powell.

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Reply
...
Opinions somewhat amalgamated together in this recent blog.
Lots more at the link.
Excerpts:

https://www.quantamagazine.org/why-cant-...-20180703/
Why Can’t We Find Planet Nine?

Quote:But no telescope has yet been able to spot it.
Out there, space gets dark alarmingly fast. 
Planets twice as far away look 16 times dimmer Whip
the intensity of the sunlight weakens by a factor of four going out, 
and then four times again coming back. 

At an orbital distance of 600 astronomical units (1 AU is the distance between Earth and the sun), 
Planet Nine would be 160,000 times dimmer than Neptune is at 30 AU. 

At 1,000 AU, it would appear more than 1 million times weaker. 
“There’s really a brick wall, basically, at 1,000 AU,” 
said Kevin Luhman, an astronomer at Pennsylvania State University.

Even if the astronomers do soon cover the search area, 
cosmically bad  Naughty luck could keep the planet hidden. 

Perhaps it’s lost in the light pollution of the Milky Way, or hiding in the glare of a bright star. 

“I lose sleep at night when I think about that possibility,” 
Brown said. 
Worse, it could be in the part of its orbit that takes it beyond that 1,000-AU wall. 
Waiting for it to swing back around would take thousands of years.

Holder is waiting for the Next Generation CMB Experiment, 
which his preliminary calculations estimate could pick up a planet as small as Earth at 1,000 AU. 
“There would be nowhere for Planet Nine to hide once this thing was turned on,” he said.
That moment remains the better part of a decade away. 

After more than a decade of tracking the Cassini spacecraft’s path through the Saturnian system, 
some researchers think the ringed planet’s orbit differs from what their models predict. 

“There’s a pattern,” said Matthew Holman, 
an astrophysicist at the Harvard-Smithsonian Center for Astrophysics. 
He compared a model of Saturn’s orbit to Cassini data and found a hint of something unknown. 
“If you put a planet in” the outer solar system, he said, 
“the fit would be better.”

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Reply
(07-04-2018, 02:36 AM)Vianova Wrote: Collective Gravity Doh

Quote:“the fit would be better.”    Banana_hump  Sheep  Banana_hump  
All coalesced space-balls in...
somewhat amalgamated together

Collective Depravity.
Emily and Michelle confer: [Image: dn28113-1_800.jpg]
...[Image: tumblr_ny93idiCKw1t5hta1o1_400.jpg] "planet 9 sux"-  pi-eyed plural plutonic pupils
What a cute couple of space-chix.
Looking forward to their rented room rendevous with mu69,lol!

I would Sputnix Planum! LilD
Collective Gravity Pennywise
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...

A single giant impact Whip supposedly is what set Uranus with it's unique rotation.
{poles at the equator and vice versa}

Two to three times Earth size impactor ...
" —most likely a young proto-planet made of rock and ice—
during the formation of the solar system about 4 billion years ago. "

I don't think so.
"supercomputer simulations" ... only prove projected simulations.

The glaring disclaimer near the bottom of the phys.org article:

https://phys.org/news/2018-07-cataclysmi...ution.html

Quote:There has been a question mark over how Uranus Nonono 
managed to retain its atmosphere Whip
when a violent collision might have been expected to send it hurtling into space.

Uranus IMPACT VIDEO at above link {will not C & P}
"glancing blow impact"




https://newatlas.com/uranus-protoplanet-...rth/55280/

The team used a powerful supercomputer to run over 50 different simulations,
involving a proto-Uranus being struck by a series of three impactors,
that were one, two, and three times the mass of the Earth, respectively.

The high-resolution simulations revealed that Uranus was likely struck by a young protoplanet 
that was at least twice the mass of the Earth, 
and comprised largely of rock and ice, 
similar in some respects to the rocky core of the gas giant itself.

The force of this collision would have been sufficient  to knock the planet onto its side. 

{would have been sufficient  =  lame and feeble}

The results of the simulations also suggest that if the impactor,
had struck Uranus with a glancing blow Slap2
{see video at first link}
the gas giant would have been able to hold onto the majority of its atmosphere – 
in excess of 90 percent in some scenarios – 
rather than having it blown off into space.

The study could also help solve a long-standing mystery regarding the extremely low temperature, 
-216 °C (-357 °F), of Uranus' atmosphere. 
It is possible that debris from the impactor could have formed a thin shell  Tp
near the planet's ice layer, 
which would have the effect of preventing heat from the planet's core from transferring to the upper atmosphere.

The computer collisions also showed that the impact between a youthful Uranus 
and a protoplanet could have thrown significant quantities of rock and ice into orbit, 
which would have settled around the tilted plane. 
From this debris, the gas giant's moons could have coalesced, 
or the influence of the material could have altered the orbit of existing moons, 
bringing them Gangup  into line.

Debris from the impact could also explain the unusual nature of Uranus' off-axis magnetic field, 
which, according to the study, 
could be distorted by unevenly distributed lumps of molten ice and lumps of rock 
deposited inside the planet during the chaotic rendezvous.


moons Uranus
[Image: les_satellites_et_anneaux_d_Uranus.jpg]


sorry, I don't believe their "glancing blow" mumbo jumbo is accumulated from enough clear data on Uranus,
for their -- "super computer simulations" -- to have that degree of confidence they project.
Lame and feeble.
Like the super con-puter simulations that predicted Pluto to be a "nothing to see here" planet,
that only got a Fly  Hi Bye.

NASA and the astronomy departments at universities rely on too much:
Super Con-puter Stimulations ... Reefer
to generate manufactured news.

...


...
...
Reply
These PUBLISH or PERISH is one way to keep your job and look busy make work.

You can write ANY code to bring out ANY answer you want.

I just had rewrite my https://mycommonsenseparty.com/pch_aka_p...house.html

Because I am only on a shared server, the 19 small mp4s where slowing down the page.

I simply re-wrote page with each videos and large images as images, click, see or watch and use back button.

Loads VERY quickly now.

So ANYTHING & EVERYTHING can be done with the right coding.

As to whether the end model is PHYSICALLY correct or not, if it gets attention, that's eyeball contact.

Bob... Ninja Alien2
"The Light" - Jefferson Starship-Windows of Heaven Album
I'm an Earthling with a Martian Soul wanting to go Home.   
You have to turn your own lightbulb on. ©stevo25 & rhw007
Reply
(07-08-2018, 12:51 AM)rhw007 Wrote: These PUBLISH or PERISH is one way to keep your job and look busy make work.

You can write ANY code to bring out ANY answer you want.



So ANYTHING & EVERYTHING can be done with the right coding.

As to whether the end model is PHYSICALLY correct or not, if it gets attention, that's eyeball contact.

Bob... Ninja Alien2
Arrow  Our simulations suggest that many additional Sednoids at high inclinations still await discovery, perhaps including bodies like the postulated planet X.
Did a rogue star change the makeup of our solar system?

July 20, 2018 by Bob Yirka, Phys.org report


[Image: 5b51ec209d626.jpg]
Effect of a prograde, parabolic fly-by of a star with a) M=0.5 M , b) M2= 1, M and c) M2= 5 M that is inclined by 60 degree and has a angle of periastron equal zero. The perihelion distance is always chosen in such a way as to lead to a …more
A team of researchers from the Max-Planck Institute and Queen's University has used new information to test a theory that suggests a rogue star passed close enough to our solar system millions of years ago to change its configuration. The group has written a paper describing their ideas and have posted it on the arXiv preprint server.



In recent years, space scientists have begun to suspect that something out of the ordinary happened to our solar system during its early years. Many have begun to wonder why there is not as much material in the outer solar system as logic would suggest. Also, why is Neptune so much more massive than Uranus, which is closer to the sun? And why do so many of the smaller objects in the outer solar system have such oddly shaped orbits? In addressing such questions, many space scientists have begun to wonder if a star might have wandered by during the early years of the solar system—coming just close enough to pull some of the objects in the outer parts of the solar system from their prior positions.

The idea of a rogue star has been debated for some time, but the theory has not been embraced because of the timing—if a star had wandered by, it would have been approximately 10 million years after the birth of our galaxy. But objects in the outer solar system would have still just been forming, making it unlikely that they would have been impacted by a rogue star.

In their paper, the researchers with this new effort suggest that recent research by other teams studying the formation of other solar systems has shown that the outer parts of such systems can be more developed than their inner parts. They suggest that if that were the case for our solar system, then it is possible that the outer parts had matured to the point where they could have been impacted by the gravitational pull of a passing star. To test their theory, they created a simulation of just such a scenario and found that it very closely matched what we are able to see today—a solar system with odd characteristics at its outer edges.

[Image: 1x1.gif] Explore further: Simulations suggest Planet Nine may have been a rogue

More information: Outer solar system possibly shaped by a stellar fly-by, arXiv:1807.02960 [astro-ph.GA] arxiv.org/abs/1807.02960

Abstract
The planets of our solar system formed from a gas-dust disk. However, there are some properties of the solar system that are peculiar in this context. First, the cumulative mass of all objects beyond Neptune (TNOs) is only a fraction of what one would expect. Second, unlike the planets themselves, the TNOs do not orbit on coplanar, circular orbits around the Sun, but move mostly on inclined, eccentric orbits and are distributed in a complex way. This implies that some process restructured the outer solar system after its formation. However, some of TNOs, referred to as Sednoids, move outside the zone of influence of the planets. Thus external forces must have played an important part in the restructuring of the outer solar system. The study presented here shows that a close fly-by of a neighbouring star can simultaneously lead to the observed lower mass density outside 30 AU and excite the TNOs onto eccentric, inclined orbits, including the family of Sednoids. In the past it was estimated that such close fly-bys are rare during the relevant development stage. However, our numerical simulations show that such a scenario is much more likely than previously anticipated. A fly-by also naturally explains the puzzling fact that Neptune has a higher mass than Uranus. Our simulations suggest that many additional Sednoids at high inclinations still await discovery, perhaps including bodies like the postulated planet X.


Journal reference: arXiv


Read more at: https://phys.org/news/2018-07-rogue-star...r.html#jCp
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...

How many times have you seen me clarify this on Mikey Brown's bullshit?

Planet Nine  ?

That is because Pluto is Planet Nine.

Looks like I have good company.

 https://www.space.com/41339-planet-nine-...tists.html

Quote:Planet Nine: 'Insensitive' Term Riles Scientists

Don't call it Planet Nine. 
That nickname for the big world that may lurk unseen in the far outer solar system,
doesn't show the proper amount of respect  Nonono
to the discoverer of the original ninth planet, Pluto, 
a group of researchers argues in a new message to their colleagues.  

"We the undersigned wish to remind our colleagues,
that the IAU planet definition adopted in 2006 
has been controversial and is far from universally accepted. 

Given this, and given the incredible accomplishment of the discovery of Pluto, 
the harbinger of the solar system's third zone — the Kuiper Belt — 
by planetary astronomer Clyde W. Tombaugh in 1930, 
we the undersigned believe,
the use of the term 'Planet 9' for objects beyond Pluto is insensitive Lol to Professor Tombaugh's legacy.

"We further believe the use of this term should be discontinued,
in favor of culturally and taxonomically neutral terms for such planets, 
such as:
Planet X  Reefer

Planet Next   Hmm2

or 

Giant Planet Five. Rofl

Nearly three dozen researchers signed onto this message:



Worship Pluto  is  Planet  Nine

Mikey Brown's Planet Nine 
is the NASA TNO queen Michele Bannister's Wub 
- Let's Have Sex on Planet X -


Like I said much earlier ... with this image ... 
Mikey's Planet Nine nonsense is falling apart,
Mikey {Slappy the Dummy} needs to go into Rehab ... his SSRI's are causing him erectile dys-funk-tion.

TNO queen Michele feeling no pain on the right ...   {TNO -- trans neptunian objects}

[Image: yS3s7ky.jpg]


Don't be -- Slappy the Dummy Whip
like Mikey is ...

Pluto
Is
A
Planet
And
It 
Is
Planet
Nine

let's have sex ... on Planet X   Hi


...
Reply
9 hours ago
Planet Nine may exist, but it might be hiding behind Neptune
By Chris Ciaccia | Fox News


 [Image: 1535987831109.jpg?ve=1&tl=1&text=big-top-image]
Artist illustration of "Planet Nine," a hypothetical world about 10 times more massive than Earth.  (Caltech/R. Hurt)
Evidence for Planet Nine continues to mount, but there may be a good reason why scientists have yet to find it  – it may be hiding.
In October 2017, NASA released a statement saying that Planet Nine may be 20 times further from the Sun than Neptune is, going so far as to say "it is now harder to imagine our solar system without a Planet Nine than with one."
But the reason it may not yet have been found is due to that same distance. At that distance, the equivalent, of 600 astronomical units (1 AU is defined as the distance between the Earth and the Sun, or approximately 93 million miles), it would be 160,000 times dimmer than Neptune is. Kevin Luhman, an astronomer at Pennsylvania State University, told the Washington Post that at 1,000 AU, it's a "brick wall, basically," making any potential planet next to impossible to see using current technology.

NASA SAYS EVIDENCE FOR 'PLANET NINE' IS MOUNTING
However, scientists believe the possibility of another planet, one which may have "10 times the mass of Earth," does indeed exist.
“Every time we take a picture, there is this possibility that Planet Nine exists in the shot,” Surhud More, associate professor in Kavli Institute for the Physics and Mathematics of the Universe at the University of Tokyo, told Advocator.
Slashgear reports that it could take up to 1,000 years before the planet is found.
Michael Brown from the California Institute of Technology has said he thinks “Planet Nine” will eventually be found, but it will take significantly stronger telescopes and planet finding technology than currently exist.
In the Oct. 2017 statement, Caltech planetary astrophysicist Konstantin Batygin, who worked with Brown, said that there "five different lines of observational evidence" that point to the existence of the planet.
The five lines of evidence are:
  • Six known objects in the Kuiper Belt, all of which have elliptical orbits that point in the same direction.
  • The orbits of the objects are all tilted the same way; 30 degrees "downward."
  • Computer simulations that show there are more objects "tilted with respect to the solar plane."
  • Planet Nine could be responsible for the tilt of the planets in our solar system; the plane of the planets orbit is tilted about 6 degrees compared to the Sun's equator
  • Some objects from the Kuiper Belt orbit in the opposite direction from everything else in the solar system.
"No other model can explain the weirdness of these high-inclination orbits," Batygin added. "It turns out that Planet Nine provides a natural avenue for their generation. These things have been twisted out of the solar system plane with help from Planet Nine and then scattered inward by Neptune."
SCIENTISTS MAY HAVE JUST FOUND A NINTH PLANET AND IT'S MASSIVE
"If you were to remove this explanation and imagine Planet Nine does not exist, then you generate more problems than you solve," Batygin also said. "All of a sudden, you have five different puzzles, and you must come up with five different theories to explain them."
Their work was published in a January 2016 paper that can be read in its entirety here.
News

http://www.foxnews.com/science/2018/09/0...ptune.html
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Tp  Crater Counting Horsepoop
Quote:This early dynamical instability model has important consequences for the terrestrial planets, particularly regarding  Arrow the origin of large impact craters on the Moon, Mercury and Mars that formed Naughty approximately Doh 4 billion years ago. The impactors that made these craters are less likely to have been flung in from the outer regions of the Solar System. This could imply they were made by small-body leftovers of the terrestrial planet formation process.


Scientists find evidence for early planetary shakeup 
September 10, 2018, Southwest Research Institute


[Image: 43-scientistsfi.jpg]
SwRI scientist studied the binary asteroid Patroclus-Menoetius, shown in this artist’s conception, to determine that a shake-up of the giant planets likely happened early in the solar system’s history, within the first 100 million years. Credit: W.M. Keck Observatory/Lynette Cook

Scientists at Southwest Research Institute studied an unusual pair of asteroids and discovered that their existence points to an early planetary rearrangement in our solar system.



These bodies, called Patroclus and Menoetius, are targets of NASA's upcoming Lucy mission. They are around 70 miles wide and orbit around each other as they collectively circle the Sun. They are the only large binary known in the population of ancient bodies referred to as the Trojan asteroids. The two swarms of Trojans orbit at roughly the same distance from the Sun as Jupiter, one swarm orbiting ahead of, and the other trailing, the gas giant.

"The Trojans were likely captured during a dramatic period of dynamic instability when a skirmish between the solar system's giant planets—Jupiter, Saturn, Uranus and Neptune—occurred," said SwRI Institute Scientist Dr. David Nesvorny. He is the lead author of the paper, "Evidence for Very Early Migration of the Solar System Planets from the Patroclus-Menoetius Binary Jupiter Trojan," published in Nature Astronomy. This shake-up pushed Uranus and Neptune outwards, where they encountered a large primordial population of small bodies thought to be the source of today's Kuiper Belt objects, which orbit at the edge of the solar system. "Many small bodies of this primordial Kuiper Belt were scattered inwards, and a few of those became trapped as Trojan asteroids."

A key issue with this solar system evolution model, however, has been when it took place. In this paper, scientists demonstrate that the very existence of the Patroclus-Menoetius pair indicates that the dynamic instability among the giant planets must have occurred within the first 100 million years of the solar system formation.

[Image: 2-scientistsfi.gif]
This animated GIF shows how the Patroclus-Menoetius pair orbit around each other as they circle the Sun in tandem with Jupiter. SwRI scientists posit that a giant planet shake-up must have occurred early in solar system history, because the …more
Recent models of small body formation suggest that these types of binaries are leftovers of the very earliest times of our solar system, when pairs of small bodies could form directly from a collapsing cloud of "pebbles."

"Observations of today's Kuiper Belt show that binaries like these were quite common in ancient times," said Dr. William Bottke, director of SwRI's Space Studies Department, who coauthored the paper. "Only a few of them now exist within the orbit of Neptune. The question is how to interpret the survivors."

Had the instability been delayed many hundreds of millions of years, as suggested by some solar system evolution models, collisions within the primordial small-body disk would have disrupted these relatively fragile binaries, leaving none to be captured in the Trojan population. Earlier dynamical instabilities would have left more binaries intact, increasing the likelihood that at least one would have been captured in the Trojan population. The team created new models that show that the existence of the Patroclus-Menoetius binary strongly indicates an earlier instability.

 

This early dynamical instability model has important consequences for the terrestrial planets, particularly regarding the origin of large impact craters on the Moon, Mercury and Mars that formed approximately 4 billion years ago. The impactors that made these craters are less likely to have been flung in from the outer regions of the Solar System. This could imply they were made by small-body leftovers of the terrestrial planet formation process.

This work underscores the importance of the Trojan asteroids in illuminating the history of our solar system. Much more will be learned about Patroclus-Menoetius binary when NASA's Lucy mission, led by SwRI scientist and paper coauthor Dr. Hal Levison, surveys the pair in 2033, culminating a 12-year mission to tour both Trojan swarms.

[Image: 1x1.gif] Explore further: Giant planet ejected from the solar system

More information: David Nesvorný et al, Evidence for very early migration of the Solar System planets from the Patroclus–Menoetius binary Jupiter Trojan, Nature Astronomy (2018). DOI: 10.1038/s41550-018-0564-3


Journal reference: Nature Astronomy [Image: img-dot.gif] [Image: img-dot.gif]
Provided by: Southwest Research Institute


Read more at: https://phys.org/news/2018-09-scientists...p.html#jCp
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With a forked tongue the snake singsss...
Reply
...
Too many space scientists with too many pet theories,
with computer model driven extrapolations on planetary movements,
that occured in some fashion way too long ago, 
on several occasions no doubt.

the distinct content of ...  disclaimer talk ... is clear


Quote:The Trojans,
were likely captured during a dramatic period of ...   "dynamic Scream instability"  Whip
 when a skirmish Swordfight
between the solar system's giant planets—Jupiter, Saturn, Uranus and Neptune—occurred,"
said SwRI Institute Scientist Dr. David Nesvorny. 


The impactors that made these craters are less likely 

to have been flung in from the outer regions of the Solar System. 
This could imply  Lol  they were made by small-body leftovers of the terrestrial planet formation process.


" dynamic instability "  ... sounds more and more like fresh bullshit

the sublink in the article posted above by EA,
has another pet theory   
of dramatic planetary movements.

It's Jumping Jack Flash Jupiter

Quote:"Colleagues suggested a clever way around this problem," says Nesvorny. 
"They proposed that Jupiter's orbit quickly changed 
when Jupiter scattered off of Uranus or Neptune 
during the dynamical instability in the outer solar system." 

The "jumping-Jupiter" theory  Rofl  as it is known, 
is less harmful to the inner solar system, 
because the orbital coupling between the terrestrial planets and Jupiter is weak if Jupiter jumps.

Tp

Nesvorny conducted thousands of computer simulations 
of the early solar system,
to test the jumping-Jupiter theory   Rofl

He found that, as hoped for, Jupiter did in fact jump by scattering from Uranus or Neptune.  
When it jumped, however, Uranus or Neptune was knocked out of the solar system. 
"Something was clearly wrong," he says.

Motivated by these results, 
Nesvorny wondered whether the early solar system could have had five giant planets instead of four. 

By running the simulations with an additional giant planet with mass similar to that of Uranus or Neptune, 
things suddenly fell in place. 
One planet was ejected from the solar system by Jupiter, 
leaving four giant planets behind, 
and Jupiter jumped, 
leaving the terrestrial Sheep  planets undisturbed.

"The possibility that the solar system had more than four giant planets initially,
and ejected some, 
appears to be conceivable    Horsepoop
in view of the recent discovery of a large number of free-floating planets in interstellar space, i
ndicating the planet ejection process could be a common occurrence," 
says Nesvorny.


Read more at: https://phys.org/news/2011-11-giant-plan...r.html#jCp



For all their computer simulations they really kinow nothing.
It is no different than all the computer simulations,
that told space scientists in the Yak Decadal Survey,
that the PLANET PLUTO,
wasn't important enough to place New Horizons spacecratft into a close orbit.

...
Reply
Tp  Crater Counting Horsepoop

Age bias exists even in outer space—in samples collected by Apollo astronauts
September 11, 2018 by Kayla Zacharias, Purdue University


[Image: 583d73c61a5b8.jpg]

Because much of the evidence from Earth's early history has been destroyed by plate tectonics and weathering, astronomers often look to the moon and Mars for clues about our beginnings. But what if some of our information from those planets is biased?

When meteors crash into the moon, the impact creates so much heat that it melts the surface and spits up ejecta. Some of that melt product cools and eventually becomes shiny little orbs known as lunar glass spherules.
Ya-Huei Huang, a graduate student in earth, atmospheric and planetary sciences at Purdue University, looked to these spherules for clues about the rate of meteoroids crashing into the moon.
The samples she studied were collected by Apollo astronauts in the 1960s. Most of the spherules were relatively young, which might indicate that the rate of impacts on the moon has increased in the recent past – but Huang was skeptical of this interpretation, based on deliberations with co-author Nicolle Zellner, a researcher at Albion College.
She created a model for the formation and distribution of lunar glass spherules and found that the impact rate on the moon has likely been constant, but that the small sample of spherules collected was biased toward younger impacts. The findings were published in the journal Geophysical Research Letters.
"The astronauts used a rake to collect samples from the surface of the moon, but if they were able to take samples from a few meters deeper, we might see a more accurate age distribution," said David Minton, a professor of earth, atmospheric and planetary sciences at Purdue who oversaw the research. "If we ever go back to the moon, we could collect samples differently and actually see if the rate of impacts has changed."

Understanding the impact rate is an important part of understanding the history of life on Earth, said Minton. As you may know, impacts have caused mass extinctions (including that of the dinosaurs). Because Earth has destroyed most of the evidence of its ancient history, the moon is an important piece of this puzzle.
[Image: 1x1.gif] Explore further: Image: Two lunar flashes light up darkened moon
More information: Ya-Huei Huang et al. No Change in the Recent Lunar Impact Flux Required Based on Modeling of Impact Glass Spherule Age Distributions, Geophysical Research Letters (2018). DOI: 10.1029/2018GL077254

Journal reference: Geophysical Research Letters [Image: img-dot.gif] [Image: img-dot.gif]
Provided by: Purdue University


Read more at: https://phys.org/news/2018-09-age-bias-o...s.html#jCp
Along the vines of the Vineyard.
With a forked tongue the snake singsss...
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...

Looking at that picture of the cratered surface of the moon in the last post,
I wondered which planet I would most like to explore, or just visit,
if I only had one choice.
In the ideal conditions of course.
Piece of cake planetary excursion with a high performance spacecraft.

Jupiter and Saturn have the most to offer with all the moons they have accumulated.
It just comes down to Mars or Pluto.
I would be hard pressed to turn down an exclusive low orbit over the planet Pluto,
and then off to Charon for dinner under the stars.

On a whim, while thinking of Pluto,
I ran into the "dwarf  planet" Eris on the net again.

Pluto's "twin".
Eris has a moon called ... Dysnomia -- the Demon Damned Goddess of Lawlessness 

from a space.com link that I lost ...

Slappy the Dummy speaks:
Quote:"Eris is the Greek goddess of discord and strife," 
astronomer Mike Brown Whip
 a member of the discovery team, said via NASA. 

"She stirs up jealousy and envy to cause fighting and anger among men. 

{Mikey Brown is somewhat infatuated with the Dysnomia dynamic, 
thus the inevitable demotion of Pluto,
and the following long years of controversy and debate}

At the wedding of Peleus and Thetis, 
all the gods were invited with the exception of Eris, 
and, enraged at her exclusion, 
she spitefully caused a quarrel among the goddesses that led to the Trojan War.”



Eris' discovery was a big reason Slap2 astronomers Pimp demoted Pluto Scream
to dwarf planet status,
in 2006. 


https://solarsystem.nasa.gov/planets/dwa.../in-depth/

Quote:Eris was discovered on Oct. 21, 2003 by M.E. Brown Whip



Mikey is a ... dismal Dysnomniac space scientist.

Superman comics had Brainiac,
NASA and ESA have cartoon clowns -- Mikey - aka - Dysnomniac.


Quote:Eris takes 557 Earth years to make one trip around the sun


quality images of Eris are few and far between
here is a larger one
https://i.kinja-img.com/gawker-media/ima...840488.jpg

I tried to improve it.

[Image: YCdi2N3.jpg]



"Pluto's twin"

Hmm2


Quote:Dysnomia has a nearly circular orbit lasting about 16 days,
and Eris,
has a 25.9 hour day  Hi

goddess Dysnomia artist impression
https://i.pinimg.com/originals/1e/36/6c/...305e70.jpg




Mikey Brown Whip
was wrong about Eris,
and he is dead wrong about Pluto,
and all his bullshit is going to be discarded into the trash can of space science history.

...
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