And here: http://www.sciencemag.org/news/2016/01/f...lar-system
Quote:The object, which the researchers have nicknamed Planet Nine, has a mass about 10 times that of Earth and orbits about 20 times farther from the sun on average than does Neptune (which orbits the sun at an average distance of 2.8 billion miles). In fact, it would take this new planet between 10,000 and 20,000 years to make just one full orbit around the sun.
The researchers, Konstantin Batygin and Mike Brown, discovered the planet's existence through mathematical modeling and computer simulations but have not yet observed the object directly.
"This would be a real ninth planet," says Brown, the Richard and Barbara Rosenberg Professor of Planetary Astronomy. "There have only been two true planets discovered since ancient times, and this would be a third. It's a pretty substantial chunk of our solar system that's still out there to be found, which is pretty exciting."
Quote:Planet Nine gravitationally dominates its neighborhood of the solar system. In fact, it dominates a region larger than any of the other known planets—a fact that Brown says makes it "the most planet-y of the planets in the whole solar system."
(01-21-2016, 09:06 PM)UniqueStranger Wrote: Considering that the scientists think its orbit is a 15,000-20,000 year cycle, I can't find any mass extinction events to match this cycle, that doesn't mean it won't cause asteroids and comets to go off course and come our way.
(01-21-2016, 09:37 PM)JayRodney Wrote:(01-21-2016, 09:06 PM)UniqueStranger Wrote: Considering that the scientists think its orbit is a 15,000-20,000 year cycle, I can't find any mass extinction events to match this cycle, that doesn't mean it won't cause asteroids and comets to go off course and come our way.
Spot on, I was thinking asteroids and comets and just as bad, debris just large enough to make it to the ground over an extended period, like a few thousand years.
Talk about a nightmare.
The other deal is, a 15,000-20,000 orbit cycle... and they have yet to spot the 'object'... What if it's not an object at all.
For everything we understand, there's a million things we don't.
I get the sense they are indulging in speculation.
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