Posted on 05/09/2017 7:39:24 AM PDT by BenLurkin
Our current theories regarding the formation of the Solar System claim that the planets formed about 4.5 billion years ago from a Solar Nebula (i.e. Nebular Hypothesis). Consistent with this theory, Jupiter is believed to have formed as a result of gravity pulling swirling clouds of gas and dust together.
Jupiter acquired most of its mass from material left over from the formation of the Sun, and ended up with more than twice the combined mass of the other planets. In fact, it has been conjectured that it Jupiter had accumulated more mass, it would have become a second star. This is based on the fact that its composition is similar to that of the Sun being made of predominantly of hydrogen.
[C]urrent models of Solar System formation also indicate that Jupiter formed farther out from its current position. In what is known as the Grand Tack Hypothesis, Jupiter migrated towards the Sun and settled into its current position by roughly 4 billion years ago. This migration, it has been argued, could have resulted in the destruction of the earlier planets in our Solar System which may included Super-Earths closer to the Sun.
...
[T]he Juno spacecraft has been conducting perijove maneuvers where it passes between the northern polar region and the southern polar with a period of about 53 days. It has completed 5 perijoves since it arrived in June of 2016...
...
Juno will gather more information on Jupiters gravity, magnetic fields, atmosphere, and composition. It is hoped that this information will teach us much about how the interaction between Jupiters interior, its atmosphere and its magnetosphere drives the planets evolution. And of course, it is hoped to provide conclusive data on the interior structure of the planet.
(Excerpt) Read more at universetoday.com ...
More on “The Grand Tack”
http://www.armaghplanet.com/blog/the-grand-tack.html
I don’t even know what’s inside my golf balls anymore and you expect me to care about the insides of a gas giant?
I would volunteer to proofread these people’s papers. So badly needed.
Mars has a tasty nougat core.
Good one. :)
Good one. :)
I remember back in my college days, there was a theory floating around that Mercury might actually be the core of a Neptune size gas giant that got too close to the sun and had all it’s gas stripped away, the theory came from the fact the Mercury is much denser than any of the other terrestrial planets which could only be explained if it was formed under much greater pressure.
No.
It has a nuclear power plant there.
Makes sense.
Not everyday you see an article with the word "perijove" in it. Of course the word is a monstrosity--"peri" is Greek for "around" and "Jove" is from the Latin genitive of the name Jupiter. But the genitive of "Zeus" is "Dios" so coining a word for an orbit of the planet Jupiter from that root wouldn't convey the meaning clearly like "perijove" does, by Jove.
Some people who ate tater tots found out. Someone golfing at a potato field, and robotic pickers and equipment packaged the treats together in meals. Lots of rubber.
Anyway, maybe there's a huge golf ball inside Jupiter. Intergalactic giants playing through our system long ago. Who knows?
Earth and Venus are the Same Size, so Why Doesnt Venus Have a Magnetosphere?....
universetoday.com | universetoday.com | Matt Williams
Posted on 12/12/2017 10:53:55 AM PST by BenLurkin
http://www.freerepublic.com/focus/chat/3612944/posts
Note: this topic is from . Thanks BenLurkin.
|
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.