Space In General

Pluto-Charon_System.gif

Beautiful image ^^^^^^ @Dennisch

I need to stop looking at it because it is beginning to make my head spin!!:lol:


(Though my spinning head might be caused by the downing of some liquid refreshment):D

:cheers:
GTsail
 
I'm going to take a wild guess that no life, as we understand it, could ever exist in any system of that nature.

So I think it would be absolutely impossible for planets to actually form that way, because portions of the accretion disc would have to be swirling in different directions that wouldn't be feasibly caused by any phenomenon. The initial conditions to achieve something like this require that the planets are already captured in the system and formed fully. That would require some sort of impact with another body at just the right moment with just the right mass and just the right velocity. To be honest I don't think those scenarios can exist anywhere in nature.



N-body. The three body problem is a bit misleading as it implies two gravitational bodies (the third is a spacecraft assumed with zero gravity). The reference frame is chosen normally to make the two gravitational bodies stationary. You can't do that once you get a third gravitating body without going to weird rotating pulsating reference frames - which are absurd.
 
I don't know where I have seen it but scientists discovered a binary black hole system that, if it was visible, created an orbit drawing that comes straight from a spirograph.

spirograaf_0.jpg


It's the one on the bottom right, I can't find the image itself but it should give you an idea.

Edit.

11167911_779833355447209_8953799370690813953_o.jpg


The Overwhelmingly Large Telescope (OWL) was a conceptual design by the European Southern Observatory for an extremely large telescope, which was intended to have a mirror of 100 meters in diameter. A telescope of approximately this size would be able to spectroscopically analyse Earth-size planets around the forty nearest sun-like stars, allowing researchers look for signs of life such as free diatomic oxygen in their atmospheres.

Because of the complexity and cost of building a telescope of this unprecedented size, ESO instead has elected to focus on the 39-meter diameter European Extremely Large Telescope which began construction in the Chilean Atacama Desert in December 2014 and is scheduled to begin operation in 2024.
 
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They don't know for sure, but it does seem quite possible Pluto is still active. Same goes for Charon, as it too has smooth regions which lack craters.

The Big Mystery is where Pluto gets the energy for the activity of renewing its surface in such complete and dramatic fashion with mountain building and all. They've ruled out tidal heating, and at the moment are reduced to muttering about radioactivity.

It's hard to believe Pluto is losing nitrogen at the rate of 500 tons every hour for the 4.5 billion years since the solar system was formed. IMO, Pluto may be much younger than that.

Very weird since they are so far from the sun. Perhaps another sun a few billion years ago maybe?
 
DCP
Very weird since they are so far from the sun. Perhaps another sun a few billion years ago maybe?
That idea, while plausible, is not currently in the mainstream of speculation. Neither is a recent catastrophic event in the asteroid belt.

However, another idea invoking a recent collision involving a larger body than Pluto, location unspecified(?), is in the mainstream view. I posted it here:
A detailed scenario of collision, dual synchronous tidal lock, subsurface oceans, and other nifty, nerdy speculations!
http://space.io9.com/could-a-massive-collision-produce-a-subsurface-ocean-on-1719439790

A pic from that link:
1352198349222119970.jpg


Enceladus has a ridiculously hot pole, and we still can’t explain why. Image credit: NASA
 
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