We're going on a planet hunt

EurekAlert ^ | 04/05/06 | Claire Bowles

[RightWhale]

It would take a lot to change the orbit of any of the gas giants. That material doesn't appear to be present now. Jupiter could force the asteroids into the present Belt, but the rest of the planets and asteroids wouldn't do much at all to Jupiter.

[CountryBumpkin]

I have seen numerous theories about Mars and Earth history presented separately. Rarely, if ever, do I see credible sources try to tie the theories/events together, even though the time frames are roughly the same. Perhaps the missing planet (or a large portion of it) struck the Earth and coalesced into what we now know, billions of years later, as Earth and Moon.

[RightWhale]

Something massive might have passed through the solar system and is long gone leaving a few clues but nothing else.

[RightWhale]

That hypothesis is currently popular. It was also the main hypothesis they taught us in grammar school in the 50s.

[JRios1968]

An exploding planet seems overly melodramatic.

[JeffersonRepublic.com]

Paging Art Bell...

Planet X

[Question_Assumptions]

The current theory, because simulations have show that it works, is a Mars-sized planet hitting "Earth I" at an oblique angle, destroying both planets in the process but leaving enough debris in orbit to form the moon. That collision resurfaced the Earth and may be responsible for why the Earth still has a liquid interior, so much heavy material in its core, and so much water. See this article for some pictures of the simulations.

[SunkenCiv]

Long-Destroyed Fifth Planet May Have Caused Lunar Cataclysm, Researchers Say
SPACE dot COM | 18 March 2002 posted: 03:00 pm ET
By Leonard David, Senior Space Writer
Posted on 03/25/2002 5:42:10 PM EST by vannrox
http://www.freerepublic.com/focus/f-news/653287/posts

[SunkenCiv]

Hoagland has borrowed (ahem) TVF's idea.

It would be nice if TVF would drop Hoaxland's "Face on Mars" crap, but alas...

Here's the link to the most current revision to TVF's EPH:

The Exploded Planet Hypothesis – 2000
Tom Van Flandern, Meta Research
http://www.metaresearch.org/solar%20system/eph/eph2000.asp

[Lancer_N3502A]

I read or saw somewhere that the total mass of the asteroid belt was between the Moon and Mars; and that if a planetoid existed there once, that it was probably struck by a Ceres size asteroid and destroyed. Either way, there's enough raw materiel there to allow mankind to exist for thousands of years on Earth, Mars, our Moon and the moons of Jupiter, Saturn, Uranus, Neptune and Pluto.

[Verginius Rufus]

There was a program on last night on one of the cable channels about this collision and how the moon was formed from the debris which bounced back into space.

[Verginius Rufus]

How could man survive on the moons of Pluto? People just wouldn't be able to stand the conditions there. It would take upwards of 10 hours to send a reply to FR and get a response--twice as long when the earth was on the far side of the sun, and for a couple of months each year it would be impossible even to read FR. No thanks.

[Reaganesque]

We're going on a planet hunt

So, be vewy, vewy, quiet!

[wideminded]

However, that law does not fit all planets and is pretty suspect.

According to the chart in the link, the correspondence looks pretty good, when one includes a small constant term, except for Neptune. I realize that this is a phenomenological law. I don't know so much about astronomy; IIRC, I actually read about Bode's Law sometime in elementary school and my knowledge of the planets probably didn't procede much further.

[LibWhacker]

Recent simulations have suggested that the gas giants of our solar system formed with circular orbits but moved into their more elongated paths about 4 billion years ago...

And why exactly did THAT happen?

[SunkenCiv]

from April 2006:

X-Planets FR 'blog

[SunkenCiv]

This is another older topic. Bode's Law is a mnemonic, at best.

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[SunkenCiv]

topic from 2006. Radioastronomer is gone now.

There is not enough mass in the asteroid belt. Jupiter played a large part in the prevention of the asteroids from forming even a small moon like object.

There is not enough mass *now*. Jupiter has more than half the mass of all known Solar System objects in orbit around the Sun (IOW, not counting the Sun), but is enriched in noble gases, so (from the standpoint of the dominant model for planetary formation) either it formed much further out, or accumulated most of its mass from interaction with other bodies.

[SunkenCiv]

http://www.freerepublic.com/focus/news/653287/posts?page=113#113

[SunkenCiv]

Just an updated ping message.

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