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Astronomy: Planets in chaos. Standard ideas of Planet formation are being demolished
NATURE ^ | 07/02/2014 | Ann Finkbeiner

Posted on 07/08/2014 2:09:26 PM PDT by SeekAndFind

The discovery of thousands of star systems wildly different from our own has demolished ideas about how planets form. Astronomers are searching for a whole new theory.

Not so long ago — as recently as the mid-1990s, in fact — there was a theory so beautiful that astronomers thought it simply had to be true.

They gave it a rather pedestrian name: the core-accretion theory. But its beauty lay in how it used just a few basic principles of physics and chemistry to account for every major feature of our Solar System. It explained why all the planets orbit the Sun in the same direction; why their orbits are almost perfectly circular and lie in or near the plane of the star's equator; why the four inner planets (Mercury, Venus, Earth and Mars) are comparatively small, dense bodies made mostly of rock and iron; and why the four outer planets (Jupiter, Saturn, Uranus and Neptune) are enormous, gaseous globes made mostly of hydrogen and helium. And because the same principles of physics and astronomy must apply throughout the Universe, it predicted that any system of 'exoplanets' around another star would look pretty much the same.

But in the mid-1990s, astronomers actually started finding those exoplanets — and they looked nothing like those in our Solar System. Gas giants the size of Jupiter whipped around their stars in tiny orbits, where core accretion said gas giants were impossible. Other exoplanets traced out wildly elliptical orbits. Some looped around their stars' poles. Planetary systems, it seemed, could take any shape that did not violate the laws of physics.

Following the launch of NASA's planet-finding Kepler satellite in 2009, the number of possible exoplanets quickly multiplied into the thousands — enough to give astronomers their first meaningful statistics on other planetary systems,

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


TOPICS: Astronomy; Science
KEYWORDS: astronomy; catastrophism; haltonarp; planets; velikovsky; xplanets

1 posted on 07/08/2014 2:09:27 PM PDT by SeekAndFind
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To: SeekAndFind

One of those situations where the variables are too numerous to allow an accurate theory.

It was easy when we knew of only one solar system and even our formation is only theory.


2 posted on 07/08/2014 2:14:42 PM PDT by cripplecreek (Remember the River Raisin.)
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To: SeekAndFind

"I tried to tell them....."
3 posted on 07/08/2014 2:16:38 PM PDT by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both.)
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To: SeekAndFind

I thought the science was settled!


4 posted on 07/08/2014 2:16:43 PM PDT by RightGeek (FUBO and the donkey you rode in on)
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To: SeekAndFind
Shows the folly of extrapolating from a single example.
It's always fun to speculate but you don't KNOW until you have more real examples.

5 posted on 07/08/2014 2:17:47 PM PDT by BitWielder1 (Corporate Profits are better than Government Waste)
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To: SeekAndFind

You mean the “consensus” was wrong?!


6 posted on 07/08/2014 2:18:16 PM PDT by VanDeKoik
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To: SeekAndFind

there was a theory so beautiful that astronomers thought it simply had to be true


Science-masterbation


7 posted on 07/08/2014 2:19:55 PM PDT by hosepipe (This propaganda has been edited to include some fully orbed hyperbole..)
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To: SunkenCiv

Unsettled science ping.


8 posted on 07/08/2014 2:21:04 PM PDT by colorado tanker
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To: cripplecreek

It’s a common problem to a lot of areas of modern science: they can only make a viable theory by extrapolating beyond the scope where it would be reasonable to extrapolate. Now, the sensible thing to do in that situation would be simply not to extrapolate. However, if they did that, they would not have a theory to explain many things, and nobody will give them funding for NOT producing theories.


9 posted on 07/08/2014 2:21:35 PM PDT by Boogieman
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To: SeekAndFind

God is smarter than all of us.


10 posted on 07/08/2014 2:24:30 PM PDT by Resolute Conservative
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To: Boogieman

I’m not sure this has anything to do with money (This isn’t climate “science”). After all, the current theories are just the most recent results of theories that have been developed over centuries by people who didn’t get paid for them.

I see this as a case of science working exactly as it should. In this case its a mix of theoretical and actual astronomy that has worked with a single available model until recently. Lots of things are going to change as we find systems in the process of formation and other systems in the process of formation in other ways.


11 posted on 07/08/2014 2:30:46 PM PDT by cripplecreek (Remember the River Raisin.)
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To: SeekAndFind

Following the launch of NASA’s planet-finding Kepler satellite in 2009, the number of possible exoplanets... The operative word here being possible. No planet outside our solar system has ever been seen. The Kepler and others have only detected disturbances in other stars that could be caused by something orbiting them.


12 posted on 07/08/2014 2:35:26 PM PDT by 1raider1
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To: SeekAndFind; All

While scientific theories are falling apart “scientists” still expect everybody to believe in evolution, global warming and that homosexuality is genetic.


13 posted on 07/08/2014 2:41:35 PM PDT by Amendment10
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To: SeekAndFind

This stuff IS rocket science and is hard. I don’t criticize scientists for not having all the answers. I criticize scientists for their arrogance in acting like they have all the answers. A small dose of humility in the face of God’s incredible creation goes a long ways


14 posted on 07/08/2014 2:48:42 PM PDT by plain talk
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To: plain talk

The ignorance of most posters on this thread does help make up for the arrogance of the scientists.


15 posted on 07/08/2014 2:55:45 PM PDT by cripplecreek (Remember the River Raisin.)
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To: cripplecreek

I have a book in my house that explains it all in the very first sentence of the first chapter.

It really isn’t rocket science you know


16 posted on 07/08/2014 3:06:34 PM PDT by ruesrose (The Anchor Holds)
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To: SeekAndFind

This stuff IS rocket science and is hard. I don’t criticize scientists for not having all the answers. I criticize scientists for their arrogance in acting like they have all the answers. A small dose of humility in the face of God’s incredible creation goes a long way


17 posted on 07/08/2014 3:15:23 PM PDT by plain talk
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To: SeekAndFind
Well maybe they should challenge their presumptions right down to the bottom.

Starting with maybe your basic theory is still okay, because how do you know these newly detected planets are, in fact, planets?

Scale?

Compare a firecracker with a nuclear warhead. All you're really looking at is the development of a single basic concept. Why should the starship Enterprise be the standard conceptual size or shape of a "reasonable" imaginary spacecraft?

Iapetus comes to mind...


18 posted on 07/08/2014 3:27:41 PM PDT by Talisker (One who commands, must obey.)
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To: colorado tanker; 75thOVI; agrace; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; ...
Thanks colorado tanker.

19 posted on 07/10/2014 5:57:06 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: KevinDavis; annie laurie; Knitting A Conundrum; Viking2002; Ernest_at_the_Beach; Mmogamer; ...
Thanks colorado tanker.
 
X-Planets
· join · view topics · view or post blog · bookmark · post new topic · subscribe ·
Google news searches: exoplanet · exosolar · extrasolar ·

20 posted on 07/10/2014 5:58:20 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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