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Our Early Solar System May Have Been Home To a Fifth Giant Planet
sciencehabit writes: A cluster of icy bodies in the same region as Pluto could be proof that our early solar system was home to a fifth giant planet, according to new research (abstract). That planet may have 'bumped' Neptune during its migration away from the sun 4 billion years ago, causing the ice giant to jump into its current orbit and scattering a cluster of its satellites into the Kuiper belt in the outer solar system.
Zecharia Sitchin was right along!
You are all cows. Cows say moo. MOOOOOOO! MOOOOOOO! Moo cows MOOOOOO! Moo say the cows. YOU COWS!!
Maybe YOUR solar, system, you earthlings.
Nibiru
Mod me down, my New Earth Global Warmingist friends!
I hope it left a note on Neptune's windshield.
Have gnu, will travel.
See http://www.sacred-texts.com/ea... Thus, the images that we see in the night sky are most likely on the firmament. We can never get there, just as "A11 work and no play makes Jack a dull boy" (A11 being short for Apollo 11, that is).
I feel fantastic, and I'm still alive.
It would be real nice if reporters could tell the difference between "suggests" and "proof"
XML is a known as a key material required to create SMD: Software of Mass Destruction
Because things have been messing with bodies way far away from the sun. Take Sedna, for example. It's perihelion is 76 AU (Neptune's is about 31 AU from the sun, much to far to have an significant effect on Sedna). Sedna's apohelion is 936 AU. Very, very elliptical, and off-axis too - it clearly didn't form in this orbit from the sun's accretion disk, something has seriously messed with its orbit. But that couldn't have been something *close* to the sun, because then Sedna's orbit would have to come back close to it, aka, into the inner solar system. And Sedna is no little rock, it's 1000 kilometers in diameter - bigger than Ceres. For something to have thrown it into such an extreme orbit it had to be quite large, and not anywhere near where the large planets of our solar system are.
So the question is.... what?
It may seem an obvious assumption to think that if there were any more large planets in our solar system we'd have seen them - but it's actually not the case. By the data from WISE, we can rule out Jupiter-sized planets 26000 AU out, and Saturn-sized planets 10000 AU out. But there could still be multiple Earth-sized planets at only several hundred AU out - we really have no idea. It's just really hard to see things out there, the light they reflect from the sun is so weak.
Another possibility is that stars have sometimes drifted by our stellar neighborhood close enough to play havoc with things. Potentially more interesting is the concept that far more common than stars roaming past our neighborhood, there could be roaming planets outnumbering star that occasionally pass through and disrupt or are even captured by our system.
I'll never forget the last thing grandma said to me before she died: "What are you doing in here with that knife?!?"
So the dwarf planets in the Kuiper belt could be old Neptune moons?
And our space faring civilization was founded from the remnants of that fifth planet.
-- Tigger warning: This post may contain tiggers! --
But as plausible as the rogue planet theory as well. there is zero and I mean ZERO evidence. not even any mildly compelling observations. It's 100% wild speculation.
Do not look at laser with remaining good eye.
Isn't this what the Nemesis folks have been talking about?
If you were me, you'd be good lookin'. - six string samurai
If this hypothesis is true, it could sort of revive the legitimacy of the Titius–Bode law by rationalizing Neptune's deviation.
Maybe it's up Uranus.
Table-ized A.I.
A planet might have existed where the asteroid belt is between Mars and Jupiter. James P. Hogan did a series of novels of a planetary war that broke up the planet and the survivors colonized Earth. Nothing worse than being stuck between the king of gods and the god of war.
Based on the fact that with the Kuiper Belt there's apparently a sudden drop off in the objects around 50 AU. In fact the drop off is so sudden some astronomers think that region was swept clear by a large gravitating body. Possibly a Planet X.
Also there are anomalies with the orbit of the minor planet Sedna indicating that its orbit has been elongated by a unseen object beyond its orbit.
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I could write up these fun theorys that has no point and can't be disproves.
Must be some type of people who like these stories if there is new stories like this all the time.
That's 7.48x10^9km to the rest of the world.
How much energy is required to eject a Jupiter sized planet from the solar system? Where did this energy come from?
Should that be, "Our Early Solar System May Have Been Home To a Fifth Giant Dwarf Planet", as it doesn't sound like it cleared its zone...