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Alien Planet's Extreme Orbit Around Red Dwarf Star

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Alien Planet’s Extreme Orbit Around Red Dwarf Star Challenges Ideas About Planet Formation

Astronomers have found evidence of an alien planet forming surprisingly far from its host star, a discovery that could challenge the prevailing wisdom about how planets take shape.

This graphic shows a gap in a protoplanetary disk around the nearby red dwarf star TW Hydrae. At left is a Hubble Space Telescope image showing a gap about 7.5 billion miles away from the star; the graphic at right shows the gap relative to the star.

 

Researchers using NASA’s Hubble Space Telescope spotted a large gap in the planet-forming debris disk surrounding the red dwarf star TW Hydrae, which lies about 176 light-years from Earth in the constellation Hydra (The Sea Serpent).

This gap, which was likely carved out by an unseen newborn exoplanet six to 28 times as massive as Earth, sits 7.5 billion miles (12 billion kilometers) from TW Hydrae — about twice the distance from our own sun to Pluto.  [The Strangest Alien Planets] http://www.space.com/159-strangest-alien-planets.html

NASA’s Kepler Mission Discovers Planet
 
 
The gap’s farflung location poses problems for the leading planet-formation theory, which holds that worlds grow slowly over tens of millions of years by sweeping up gas, dust and rocks from the protoplanetary disk.
 
Planet formation should proceed more slowly at relatively greater distances from the host star, according to this idea, because orbital speeds are reduced and there is less raw material in the outer reaches of the disk.
 
Artists’ Conceptions Of Extrasolar Planets
 
It should thus take the potential TW Hydrae planet more than 200 times longer to form than it took Jupiter, which lies just 500 million miles (800 million km) from the sun, researchers said. Jupiter is thought to have taken shape over the course of 10 million years or so.
 
But the numbers don’t add up, because TW Hydrae, which is 55 percent as massive as the sun, is just 8 million years old.
 
An alternative idea posits that planets can form very rapidly — within a few thousand years — when pieces of the protoplanetary disk become gravitationally unstable and collapse on themselves.

 
 But even under this scenario, it’s unclear how such a low-mass planet could form, researchers said.

 
Space.com  |  By Mike Wall
 
Follow Mike Wall on Twitter @michaeldwall and Google+. Follow us @Spacedotcom, Facebook or Google+. Originally published on SPACE.com.
 
HUFFPOST SCIENCE
 



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    Total 4 comments
    • Anonymous

      THERE ain’t a director in hollywood who ain’t jellious,OF THE CAMERAS,ON THE HUBBLE space telescope,WITH THAT SAID,hubble don’t waste any time looking around the solar system,IT WAS BUILT TO LOOK AT “NIBIRU” period…..YEA, it cost tax payers BILLIONS to build and put up there,AND THE DAY AIN’T NEVER COMING, when anyone but the government is going to be looking through it either,hate to burst your bubble,but thats life,BESIDES ANYONE stupid enough to believe ANYTHING the lieing whores AT NASA say, is an IDIOT………that was never the real space program anyway,its at china lake in california,and always was……THINK I’AM kidding,watch all your government officals dissappear,when the people on NIBIRU show up,on planet stupid,HINT,HINT they eat meat,and they love the taste of children……..and their BIG guys TOO………………………………………

    • Anonymous

      NASA knows the truth about Planet X. NASA knows the announcement Planet X is real and has been in the inner solar system for years cannot be stopped: The announcement IS going to happen, by the end of this summer IMO.

      So instead of looking like total fools for greatly assisting the cover up of Planet X, NASA is putting out stories that actually SUPPORT the truth contained in ZetaTalk.com. NASA does not want to appear the last to know about Planet X!

      Once again this “author” who apparently has loads of time to spend online (no job or is your job posting Establishment Lies?) is telling everything BUT the truth about Planet X and constantly pushing what the Establishment wants you to believe instead.

      LIAR? PAID? GULLBILE? Does not matter which it is as long as the truth is not posted by this author, only nonsense!

    • GRENADE OCONN3R

      I thought this story was about a completely different solar system….probably the same one you Planet X nutters come from! (I wish you’d go back)

    • Call It Like It Is...

      There is NOT one single piece of credible scientific evidence for your ridiculous claims… You dorks who still believe that Nibiru/Wormwood/Planet X or whatever you want to call it, is still coming, are just plain idiots… There is NO Nibiru… There never has been any type of Nibiru either…

      There are lots of strange things that the US Government hides from its Citizens, but this is definitely not one of them.

      The crazy crap that people say like they have seen Nibiru in the Southwest morning Sky, but then they claim to have seen it again in the Southeast morning Sky two days later is preposterous… No planet could move that fast and be in so many different locations all at the same time…

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