SCI A massive object devastated Uranus a long time ago and it never fully recovered

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michaelteever

Deceased
Personally, let me first to say, I truly hope nobody has had the experience of having a massive object devastate Uranus!!

But, I digress, I found this interesting.

Michael

For fair use education/research purposes.

The link:

The article:

A massive object devastated Uranus a long time ago and it never fully recovered
By Mike Wehner

uranus.jpg


Our Solar System is a pretty calm place these days, all things considered, but that wasn’t always the case. In the period when the planets were still forming, collisions between various large bodies were common, and they ultimately helped shape the system that we see today. New research shows that Uranus, a chilly, hostile planet with a number of peculiar features, was the victim of a devastating impact during those early years, and it might explain some of the planet’s strange personality.

Uranus moves much differently than the other planets in our Solar System, spinning on its side in comparison to the rest of the worlds in our neighborhood. Astronomers have often wondered just how this happened, but simulations performed by scientists at Durham University’s Institute for Computational Cosmology might have finally produced the answer.

“We ran more than 50 different impact scenarios using a high-powered super computer to see if we could recreate the conditions that shaped the planet’s evolution,” lead author Jacob Kegerreis explains. “Our findings confirm that the most likely outcome was that the young Uranus was involved in a cataclysmic collision with an object twice the mass of Earth, if not larger, knocking it on to its side and setting in process the events that helped create the planet we see today.”

Something absolutely huge slammed into Uranus when it was still young, causing it to tilt dramatically and spin on its side. The impact would have to have been a glancing blow, rather than a head-on collision, but the contact was sufficient to change the direction the planet’s axis is pointing.

The researchers also believe that the collision might have helped produce the planet’s rings of dust and debris, and maybe even its moons. The incredible damage to Uranus and the mass of loose material that was produced by the crash would have coalesced into a ball, and the planet’s skewed magnetic field that we see today might be a result of non-uniform settling of the material around its core.
 

tanstaafl

Has No Life - Lives on TB
Uranus trivia: in ancient Greek literature Uranus was the son and husband of Gaia.

There must be an environmentalist joke in there somewhere ...
 

vessie

Has No Life - Lives on TB
Uranus trivia: in ancient Greek literature Uranus was the son and husband of Gaia.

There must be an environmentalist joke in there somewhere ...

Thank you Tanstaafl!

I love trivia and will sock this away for if I'm ever on Jeopardy!

"Alex, I'll take "Analbumcover for $500!" (an album cover, I still laugh when I remember Sean Connery saying this on that Jeopardy skit on SNL). V
 

Housecarl

On TB every waking moment
Personally, let me first to say, I truly hope nobody has had the experience of having a massive object devastate Uranus!!

But, I digress, I found this interesting.

Michael

For fair use education/research purposes.

The link:

The article:

A massive object devastated Uranus a long time ago and it never fully recovered
By Mike Wehner

uranus.jpg


Our Solar System is a pretty calm place these days, all things considered, but that wasn’t always the case. In the period when the planets were still forming, collisions between various large bodies were common, and they ultimately helped shape the system that we see today. New research shows that Uranus, a chilly, hostile planet with a number of peculiar features, was the victim of a devastating impact during those early years, and it might explain some of the planet’s strange personality.

Uranus moves much differently than the other planets in our Solar System, spinning on its side in comparison to the rest of the worlds in our neighborhood. Astronomers have often wondered just how this happened, but simulations performed by scientists at Durham University’s Institute for Computational Cosmology might have finally produced the answer.

“We ran more than 50 different impact scenarios using a high-powered super computer to see if we could recreate the conditions that shaped the planet’s evolution,” lead author Jacob Kegerreis explains. “Our findings confirm that the most likely outcome was that the young Uranus was involved in a cataclysmic collision with an object twice the mass of Earth, if not larger, knocking it on to its side and setting in process the events that helped create the planet we see today.”

Something absolutely huge slammed into Uranus when it was still young, causing it to tilt dramatically and spin on its side. The impact would have to have been a glancing blow, rather than a head-on collision, but the contact was sufficient to change the direction the planet’s axis is pointing.

The researchers also believe that the collision might have helped produce the planet’s rings of dust and debris, and maybe even its moons. The incredible damage to Uranus and the mass of loose material that was produced by the crash would have coalesced into a ball, and the planet’s skewed magnetic field that we see today might be a result of non-uniform settling of the material around its core.

For those who didn't do a deep dive into the planets of the Solar System, Uranus has a radius of 15,759 mi and a mass of 8.681 × 10^25 kg (14.54 M⊕)(Earth has a radius of 3,959 mi and a mass of 5.972 × 10^24 kg). So whatever hit Uranus was effectively the biggest masse' shot that we have evidence of in the Solar System.
 

Countrymouse

Country exile in the city
Personally, let me first to say, I truly hope nobody has had the experience of having a massive object devastate Uranus!!

But, I digress, I found this interesting.

Michael

For fair use education/research purposes.

The link:

The article:

A massive object devastated Uranus a long time ago and it never fully recovered
By Mike Wehner

uranus.jpg


Our Solar System is a pretty calm place these days, all things considered, but that wasn’t always the case. In the period when the planets were still forming, collisions between various large bodies were common, and they ultimately helped shape the system that we see today. New research shows that Uranus, a chilly, hostile planet with a number of peculiar features, was the victim of a devastating impact during those early years, and it might explain some of the planet’s strange personality.

Uranus moves much differently than the other planets in our Solar System, spinning on its side in comparison to the rest of the worlds in our neighborhood. Astronomers have often wondered just how this happened, but simulations performed by scientists at Durham University’s Institute for Computational Cosmology might have finally produced the answer.

“We ran more than 50 different impact scenarios using a high-powered super computer to see if we could recreate the conditions that shaped the planet’s evolution,” lead author Jacob Kegerreis explains. “Our findings confirm that the most likely outcome was that the young Uranus was involved in a cataclysmic collision with an object twice the mass of Earth, if not larger, knocking it on to its side and setting in process the events that helped create the planet we see today.”

Something absolutely huge slammed into Uranus when it was still young, causing it to tilt dramatically and spin on its side. The impact would have to have been a glancing blow, rather than a head-on collision, but the contact was sufficient to change the direction the planet’s axis is pointing.

The researchers also believe that the collision might have helped produce the planet’s rings of dust and debris, and maybe even its moons. The incredible damage to Uranus and the mass of loose material that was produced by the crash would have coalesced into a ball, and the planet’s skewed magnetic field that we see today might be a result of non-uniform settling of the material around its core.

I'm almost afraid to post this question, but..........


link???
 

raven

TB Fanatic
It is interesting that the assumption is that "something huge slammed into the planet". because its axial tilt is 98 degrees out.
This implys that all the planets should have the same axial tilt and that should be about zero. Only two fit that - Mercury and Jupiter.
Four have similar tilts - Earth, Mars, Saturn, Neptune with a tilt of about 25 degrees (which has given rise to the theory that they formed a separate system that merged with old Sol)

If you want to talk about weird, explain Venus where the axial tilt is 180 degrees and spins in the opposite direction - it is upside down and backwards - which would seem to be a much bigger story. Which gets stranger. . .
When Venus is nearest the Earth on its orbit, the same side always faces the Earth. And the rotation period is close to the resonance period of the Earth-Venus system, that is 243.16 Earth days. So Venus is almost phase-locked to the Earth.

(the solar system is much more chaotic than we were led to believe in school)
 
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