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Search on for Death Star that throws out deadly comets..
Daily Telegraph ^ | March 13th, 2010

Posted on 03/19/2010 7:30:45 PM PDT by TaraP

Nasa scientists are searching for an invisible 'Death Star' that circles the Sun, which catapults potentially catastrophic comets at the Earth. The star, also known as Nemesis, is five times the size of Jupiter and could be to blame for the impact that wiped out the dinosaurs 65 million years ago.

The bombardment of icy missiles is being blamed by some scientists for mass extinctions of life that they say happen every 26 million years

Nemesis is predicted to lie at a distance equal to 25,000 times that of the Earth from the Sun, or a third of a light-year.

Astronomers believe it is of a type called a red or brown dwarf – a "failed star" that has not managed to generate enough energy to burn like the Sun.

But it should be detectable by a heat-sensitive space telescope called WISE, the Wide-Field Infrared Survey Explorer.

Launched last year, WISE began surveying the skies in January. It is expected to discover a 1000 brown dwarfs within 25 light-years of the Sun – right on our cosmic doorstep – before its coolant runs out in October.

(Excerpt) Read more at telegraph.co.uk ...


TOPICS: Government; News/Current Events; Philosophy
KEYWORDS: catastrophism; comet; danielwhitmire; davidraup; johnmatese; kuiperbelt; mikebrown; nemesis; oortcloud; quaoar; sedna; tyche; wise; xplanets
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1 posted on 03/19/2010 7:30:46 PM PDT by TaraP
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To: All

2 posted on 03/19/2010 7:31:17 PM PDT by TaraP (He never offered our victories without fighting but he said help would always come in time)
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To: All

A major clue to Nemesis’s existence is a mysterious dwarf planet called Sedna that was spotted on an elongated 12,000-year-long orbit around the sun.

Mike Brown, who discovered Sedna in 2003, said: “Sedna is a very odd object – it shouldn’t be there! It never comes anywhere close to any of the giant planets or the sun. It’s way, way out there on this incredibly eccentric orbit.

The only way to get on an eccentric orbit is to have some giant body kick you – so what is out there?”

Professor John Matese, of the University of Louisiana at Lafayette, says most comets in the inner solar system seem to come from the same region of the Oort Cloud – launched by the pull of a companion star to the sun that scatters comets in its wake.

He suggests it is up to five times the size of Jupiter or 7,000 times the size of Earth.


3 posted on 03/19/2010 7:32:32 PM PDT by TaraP (He never offered our victories without fighting but he said help would always come in time)
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To: TaraP

/


4 posted on 03/19/2010 7:34:02 PM PDT by happinesswithoutpeace (1.416785(71) x 10^32)
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To: TaraP

5 posted on 03/19/2010 7:34:39 PM PDT by wally_bert (It's sheer elegance in its simplicity! - The Middleman)
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To: TaraP

Well, at at least the Nirubu freaks have SOME relevance now (But this thing is NOT going to come through the Solar System in 2012...)


6 posted on 03/19/2010 7:35:00 PM PDT by Thunder90 (Fighting for truth and the American way... http://citizensfortruthandtheamericanway.blogspot.com/)
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To: TaraP

bflr


7 posted on 03/19/2010 7:37:07 PM PDT by Captain Beyond (The Hammer of the gods! (Just a cool line from a Led Zep song))
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To: Thunder90

I’m sure Al Gore will be able to find it and make it his next Panic Attack.


8 posted on 03/19/2010 7:39:24 PM PDT by annieokie
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To: TaraP

So and we can do what about it!!! This is more waste of money


9 posted on 03/19/2010 7:39:52 PM PDT by truthbetold11 (truthbetold11)
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To: All

10 posted on 03/19/2010 7:40:53 PM PDT by TaraP (He never offered our victories without fighting but he said help would always come in time)
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To: TaraP

11 posted on 03/19/2010 7:41:42 PM PDT by BigEdLB (Now there ARE 1,000,000 regrets - but it may be too late.)
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To: TaraP

We don’t really know if Sedna is an odd object or not. Its in the least know part of our solar system and might turn out to be one of many similar objects.


12 posted on 03/19/2010 7:42:01 PM PDT by cripplecreek (Remember the River Raisin! (look it up))
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To: TaraP
Image and video hosting by TinyPic

Mmmmuuuuuhahahaha!

13 posted on 03/19/2010 7:42:18 PM PDT by death2tyrants
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To: Thunder90

Looks like 2013 now! :)

John Matese (University of Louisiana at Lafayette) thinks the gravitational influence of a solar companion is disrupting that part of the cloud, scattering comets in its wake. His calculations suggest Nemesis is between 3 to 5 times the mass of Jupiter, rather than the 13 Jupiter masses or greater that some scientists think is a necessary quality of a brown dwarf. Even at this smaller mass, however, many astronomers would still classify it as a low mass star rather than a planet, since the circumstances of birth for stars and planets differ.

Richard Muller of the University of California Berkeley first suggested the Nemesis theory, and even wrote a popular science book on the topic. He thinks Nemesis is a red dwarf star 1.5 light years away.

Binary star systems are common in the galaxy. It is estimated that one-third of the stars in the Milky Way are either binary or part of a multiple-star system.

Part of the WISE mission is to search for brown dwarfs, and NASA expects it could find one thousand of the dim stellar objects within 25 light years of our solar system.

Ned Wright, professor of astronomy and physics at UCLA and the principal investigator for the WISE mission, said that WISE will easily see an object with a mass a few times that of Jupiter and located 25,000 AU away, as suggested by Matese.

We may not have an answer to the Nemesis question until mid-2013. WISE needs to scan the sky twice in order to generate the time-lapsed images astronomers use to detect objects in the outer solar system. The change in location of an object between the time of the first scan and the second tells astronomers about the object’s location and orbit. Then comes the long task of analyzing the data.

“I don’t suspect we’ll have completed the search for candidate objects until mid-2012, and then we may need up to a year of time to complete telescopic follow-up of those objects,” said Kirkpatrick.


14 posted on 03/19/2010 7:44:03 PM PDT by TaraP (He never offered our victories without fighting but he said help would always come in time)
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To: BigEdLB

LOL!

Need to inform NASA about this pronto!


15 posted on 03/19/2010 7:45:07 PM PDT by TaraP (He never offered our victories without fighting but he said help would always come in time)
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To: TaraP

WORMWOOD


16 posted on 03/19/2010 7:52:46 PM PDT by American Constitutionalist (There is no civility in the way the Communist/Marxist want to destroy the USA)
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To: American Constitutionalist

Planet X???


17 posted on 03/19/2010 7:55:31 PM PDT by Thunder90 (Fighting for truth and the American way... http://citizensfortruthandtheamericanway.blogspot.com/)
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To: TaraP

This was a science-fiction novel by Isaac Asimov.


18 posted on 03/19/2010 7:59:11 PM PDT by gitmo
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To: TaraP
"Brown dwarf"

"Death star"

"Nemesis"

Only one thing comes to mind. And it isn't a heavenly body, that's for sure.

19 posted on 03/19/2010 7:59:40 PM PDT by ProtectOurFreedom
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To: wally_bert; null and void
No, no, no! That's a Red Dwarf, which is something entirely different.
20 posted on 03/19/2010 8:03:00 PM PDT by Vroomfondel
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To: TaraP

Interesting. Is this thing outbound or is it inbound?


21 posted on 03/19/2010 8:09:49 PM PDT by smokingfrog (You can't ignore your boss and expect to keep your job... WWW.filipthishouse2010.com)
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To: TaraP

22 posted on 03/19/2010 8:10:55 PM PDT by Jack Hydrazine
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To: TaraP

23 posted on 03/19/2010 8:14:31 PM PDT by Jack Hydrazine
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To: TaraP
So they are speculating on the size of a failed, unlit [companion] star, before it's even found?

Sedna, is more like a large asteroid type of thing, smaller than Pluto, at 800-1100 miles diameter. That's the object in the strange, 12,000 yr. orbit mentioned in the article, right?

I'm getting the idea that the Sedna discovery helped lead to the "size" speculation of this yet-to-be-found but expected to exist dark companion star?

24 posted on 03/19/2010 8:15:54 PM PDT by BlueDragon (there is no such thing as a "true" compass, all are subject to both variation & deviation)
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To: Jack Hydrazine

Jack H. Where’d you find the pic of Pelosi traveling in disguise?


25 posted on 03/19/2010 8:16:26 PM PDT by BigEdLB (Now there ARE 1,000,000 regrets - but it may be too late.)
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To: BlueDragon; Quix; Star Traveler
Last June SOHO showed a winged disk near the SUN http://www.youtube.com/watch?v=aL14FLNuDBg&feature=related A a classic Sumerian symbol Funny but this is what many of the Ancient Cultures spoke of From Bibical Scripture: Did God stop the sun, as it says Isaiah 38:8? Yes, God did cause the sun appear to stop for King Hezekiah, but He also made it run backwards. The indicator of this was the shadow on a sundial. The great debate over this instance focuses on whether the Lord influenced the movement of the sun, the earth, or the shadow itself. Evolutionists like to use this passage to blame the Bible for agreeing with the falsehood that the sun moved across the sky, and the earth remained stationary. The fact is, the Lord simply said that He would move the sun's shadow. God could have accomplished this task by bending light or tilting the ground on which the sundial rested. I don't see why people think God should have said, "I'll make the earth run backwards for you." The Lord was giving a direct sign that He would give the King 15 more years to live, and it doesn't really matter how He made the shadow reverse itself. "And this shall be a sign unto thee from the LORD, that the LORD will do this thing that he hath spoken; Behold, I will bring again the shadow of the degrees, which is gone down in the sun dial of Ahaz, ten degrees backward. So the sun returned ten degrees, by which degrees it was gone down" (Isa. 38:7-8).
26 posted on 03/19/2010 8:24:47 PM PDT by TaraP (He never offered our victories without fighting but he said help would always come in time)
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To: Thunder90

Maybe


27 posted on 03/19/2010 8:29:31 PM PDT by American Constitutionalist (There is no civility in the way the Communist/Marxist want to destroy the USA)
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To: Jack Hydrazine

bfl8r


28 posted on 03/19/2010 8:37:14 PM PDT by DigitalVideoDude (It's amazing what you can accomplish when you don't care who gets the credit. -Ronald Reagan)
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To: TaraP

This theory has actually been around for a long time. I first heard of this back in 1969/1970. Unfortunately for me at the time I shot my mouth off about it in school and instantly became a laughing stock. At the time I found the theory credible and it seems that it could indeed be very real. So, piss-off to my Classmates of ‘74 on this one.


29 posted on 03/19/2010 8:44:10 PM PDT by Birdsbane ("Onward through the fog!" ... Oat Willie)
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To: BigEdLB

How’d you know!?!?!? LOL!


30 posted on 03/19/2010 9:24:41 PM PDT by Jack Hydrazine
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To: TaraP

Hmmmmmm.

Thx.


31 posted on 03/19/2010 9:32:34 PM PDT by Quix (BLOKES who got us where we R: http://www.freerepublic.com/focus/religion/2130557/posts?page=81#81)
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To: TaraP; Alamo-Girl; betty boop
A simple 15 degree rotation of the sundial's dial plate about its axis would have done the trick...

OTOH, I prefer to believe that the Creator has absolute control over spacetime, so there are any number of adustments that could have been applied...

32 posted on 03/19/2010 9:50:31 PM PDT by TXnMA (D'Aleo re Hansen's "GISS" temperature database: "Non Gradus Anus Rodentum!")
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To: TaraP
BTW, the "Nbiru" image on SOHO is formed when the intensity of any point light source saturates SOHO's detector. I have observed the lateral smearing of scanlines exactly like that shown in the Youtube video -- when observing sun-grazer comet passes on SOHO.

IOW, the "winged disk" image has nothing to do with the bright object, and everything to do with an aberration in the SOHO instrumentation.

33 posted on 03/19/2010 10:06:51 PM PDT by TXnMA (D'Aleo re Hansen's "GISS" temperature database: "Non Gradus Anus Rodentum!")
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To: TaraP
OOoooops! I missed the Scriptural reference of "ten degrees". That means that the sundial would have "backed up" 40 minutes -- not an hour.

From that, I don't see the connection to 15 years of the king's lifetime...

34 posted on 03/19/2010 10:17:38 PM PDT by TXnMA (D'Aleo re Hansen's "GISS" temperature database: "Non Gradus Anus Rodentum!")
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To: TXnMA
Indeed. Thank you so much for sharing your insights, dear brother in Christ!
35 posted on 03/19/2010 10:23:38 PM PDT by Alamo-Girl
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To: TaraP

Everyone knows it's Da JOOOZTM!

(Jimmuh Carter told me so!)

36 posted on 03/19/2010 10:30:04 PM PDT by uglybiker (BACON!!)
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To: TaraP
It turns out the bright "Nbiru image former" object that saturated the SOHO image above was Venus:

Hmmm...the above image won't hotlink on FR, but you can see it at

http://transientsky.files.wordpress.com/2010/01/soho_comet.png

37 posted on 03/19/2010 10:32:41 PM PDT by TXnMA (D'Aleo re Hansen's "GISS" temperature database: "Non Gradus Anus Rodentum!")
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To: Birdsbane

The theory is this dark (actually twin) star’s orbit is so long and elliptical that it’s impact is only noticed when it comes around and gravitationally pulls objects out of the Oort cloud.

Which is how we get craters :)


38 posted on 03/19/2010 10:35:24 PM PDT by txhurl
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To: BlueDragon; SunkenCiv; All

Never mind the death of the dinosaurs. Could this be the cause of the possible comet strike in the Northern Hemisphere that destroyed the Clovis culture, killed the large mammals and triggered the thousand year Younger Dryas cooling?


39 posted on 03/19/2010 10:38:03 PM PDT by gleeaikin
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To: gleeaikin; SunkenCiv; Swordmaker; Fred Nerks
Whatever did all that was close, and not a third of a light year off. A soviet scientist by the name of S. K. Vsehsviatsky (at least in Roman letters) back in the 50s noted that the rapid decrease in short period comets since Roman times indicated a very recent source (within our system) for all of them and Velikovsky claimed that short period comets, volcanism, and earthquakes were all remnant phenomena from recent catastrophes which had all been damping more or less exponentially since Greco-Roman times .

I don't see any of that as an argument against the existence of this red dwarf Nemesis however and if Nemesis can be shown to exist, we need to get a look at it. One theory about habitable planets says that the most likely places for them would be around red dwarf stars.

40 posted on 03/20/2010 6:04:15 AM PDT by wendy1946
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To: TXnMA; TaraP

Interestingly enough, there is a [cough, cough] 'winged disk' object visible there at SOHO, now. It is the planet Mercury visible @;

SOHO, Pick of the week, suicide comets from March 15, this year. Ooh, the Ides of March, and all that jazz. Ceasar stabbed, then comets dumping themselves into the Sun. Ko-inkydink? Or just Kooky? Let the reader/viewer decide!

41 posted on 03/20/2010 8:58:39 AM PDT by BlueDragon (there is no such thing as a "true" compass, all are subject to both variation & deviation)
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To: BlueDragon; TXnMA
What I find teasingly fascinating is in the textual commentary accompanying the images to the page(s) which we both linked to (the part that interests me the most, I'll underline for emphasis);

I'd swear there is a pattern. I've seen this many times at SOHO. One time in particular (a few years ago) the CME deflected a comet's tail. That particular comet didn't crash into the Sun like the other recent ones.

More info from same page;

As far as the CME's go, I'm starting to wonder if there isn't an electrical charge that induces the CME. But then again, there are CME's when no comets are visible, too.

Thanks to SOHO, we do see a great many more small comets which had previously gone undetected.

The EIT 284 product shows them the best, to my own untrained eyes. EIT 284 latest image

42 posted on 03/20/2010 9:20:19 AM PDT by BlueDragon (there is no such thing as a "true" compass, all are subject to both variation & deviation)
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To: TaraP
Great graphics!

Your post is a great place to hang a plug for what I consider to be one of the coolest programs I've ever seen: Celestia

From the Celestia homepage:

Welcome to Celestia
... The free space simulation that lets you explore our universe in three dimensions. Celestia runs on Windows, Linux, and Mac OS X.

Unlike most planetarium software, Celestia doesn't confine you to the surface of the Earth. You can travel throughout the solar system, to any of over 100,000 stars, or even beyond the galaxy.
All movement in Celestia is seamless; the exponential zoom feature lets you explore space across a huge range of scales, from galaxy clusters down to spacecraft only a few meters across. A 'point-and-goto' interface makes it simple to navigate through the universe to the object you want to visit.

Celestia is expandable. Celestia comes with a large catalog of stars, galaxies, planets, moons, asteroids, comets, and spacecraft. If that's not enough, you can download dozens of easy to install add-ons with more objects.

At the Celestia Motherload site, you can download add-ons for more detailed planetary textures, real spacecraft like Voyager I and II with their current positions, and also a huge number of fictional spacecraft as well. Apparently some folks have lots of spare time on their hands. :-)


43 posted on 03/20/2010 10:37:30 AM PDT by zeugma (Proofread a page a day: http://www.pgdp.net/)
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To: wendy1946

http://www.archive.org/stream/earthupheaval010880mbp/earthupheaval010880mbp_djvu.txt

Excerpt:

And if we give credence to the records of earthquakes
in the chronicles of the ancient East and in those of the
classical age, we shall be amazed at the number of seismic
shocks and tremors. One example is the Babylonian rec-
ords on clay tablets stored in the library of Nineveh,
excavated by Sir Henry Layard; another is the Roman
records of a later age: in a single year during the Punic
Wars (217) fifty-seven earthquakes were reported in
Rome. 7

From all this it is apparent that seismic activity on our
planet subsided very quickly in intensity as well as in the
number of occurrences; and this again would point to a
stress or stresses that took place not so long ago: earth-
quakes are readjustments of the terrestrial strata, with
accompanying relief from the stress.


44 posted on 03/20/2010 2:42:45 PM PDT by Fred Nerks (fair dinkum!)
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To: zeugma
I agree. Celestia stays on my desktop. It is used often, when my granddaughters ask, "Granddad, What is that bright star we can see right over the treetops?"

Our front door looks right out on the eastern ecliptic -- so, usually it's a planet (Mars, lately...)

45 posted on 03/20/2010 3:53:56 PM PDT by TXnMA (D'Aleo re Hansen's "GISS" temperature database: "Non Gradus Anus Rodentum!")
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To: TXnMA

One of the coolest features of Celestia IMO, is that it’s the first program that I’ve ever seen that really gives you a feel for the scale of space. Limit yourself to the speed of light, make a tour of the solar system and you’ll see what I mean. :-) I recently flew to Alpha Centauri at 1AU/sec. Even at a ridiculous speed like that, it still takes freaking forever!


46 posted on 03/20/2010 4:46:23 PM PDT by zeugma (Proofread a page a day: http://www.pgdp.net/)
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To: wendy1946; gleeaikin; 75thOVI; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; ...
What wendy said. :') KRONOS pubbed or repubbed two of his papers (S.K. Vsekhsvyatskii), "The Origin and Evolution of the Comets and Other Small Bodies in the Solar System" and "The Ring of Comets and Meteorites Encircling Jupiter".

Interesting idea gleeaikin; it seems more likely that bombardments of the Earth come from objects within the Solar System -- but that could easily result from knowing more about such objects. Smaller objects at greater distances are more difficult to detect, and almost all of those detected so far are in orbit around the Sun.
Rogue Planet Find Makes Astronomers Ponder Theory
by Maggie Fox
October 5, 2000
Eighteen rogue planets that seem to have broken all the rules about being born from a central, controlling sun may force a rethink about how planets form, astronomers said on Thursday... "The formation of young, free-floating, planetary-mass objects like these is difficult to explain by our current models of how planets form," Zapatero-Osorio said... They are not linked to one another in an orbit, but do move together as a cluster, she said... Many stars in our own galaxy, the Milky Way, may have formed in a similar manner to the Orion stars, she said. So there could be similar, hard-to-see planets floating around free near the Solar System.
first one an earlier topic about this, the rest just related sidebars:
 
Catastrophism
 
· join · view topics · view or post blog · bookmark · post new topic · subscribe ·
 

47 posted on 03/20/2010 7:13:06 PM PDT by SunkenCiv (http://themagicnegro.com/)
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These are related (that's just MHO of course): same here:
48 posted on 03/20/2010 7:13:50 PM PDT by SunkenCiv (http://themagicnegro.com/)
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To: Fred Nerks

Thanks Fred Nerks for the EiU.

I’m scratching my head over who sent this link, I really thought I had that info saved along with the file:

http://muller.lbl.gov/teaching/Physics10/Nemesis%20book/%20Nemesis1_files/filelist.xml


49 posted on 03/20/2010 7:16:06 PM PDT by SunkenCiv (http://themagicnegro.com/)
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some oldies:
Nemesis: Does the Sun Have a 'Companion'?
by Robert Roy Britt
03 April 2001
Richard A. Muller... a physicist at University of California at Berkeley... [has] ideas... generally rooted in solid science and genius extrapolation... But Muller's biggest idea is a real Nemesis. Or so he claims. Like a thorn in the side of mainstream researchers, Muller's Nemesis theory -- that our Sun has a companion star responsible for recurring episodes of wholesale death and destruction here on Earth -- seems to reemerge periodically like microbes after a mass extinction. It's a theory that has many detractors. And it's a theory that has been beaten down and left for dead in the minds of most scientists... Muller's idea for Nemesis came to him 1983. Luis Alvarez, then an emeritus professor of physics at the University of California at Berkeley, and his son Walter had recently put forth the theory that a giant impact had wiped out the dinosaurs... Around the same time, two other researchers had suggested yet another controversial idea, that mass extinctions occurred at regular intervals -- every 26 million years or so. Scientists immediately folded the ideas into a new and breathtaking possibility: Impacts by space rocks were causing massive global species destruction every 26 million years.
Searching for a Tenth Planet
by Jeff Kanipe
Oct 15 1999
The main justification for the search was made when discrepancies in the predicted positions of the outer planets Uranus and Neptune kept cropping up with alarming regularity. Uranus has completed over two and a half orbits since its discovery in 1741, and Neptune, discovered in 1846, has completed almost one full circuit. Both planets should have accurately determined orbits by now. And yet, variations in their predicted positions, called residuals, persist. Critics, most prominent among them, British astronomer Dr. Brian Marsden with the International Astronomical Union, say that inadvertent data error is the real culprit behind the residuals, not a missing planet. In fact, says Dr. Marsden, Planet X is not a scientific problem as much as it is a psychological problem...

In the October 11 issue of the Monthly Notices of the Royal Astronomical Society, Dr. John Murray, an astronomer from the Open University in the United Kingdom proposed that a large object in the extreme outer realms of the solar system may be gravitationally affecting the orbits of long-period comets. He theorizes that the object would have to orbit the sun 32,000 times farther away than Earth (about 3 trillion miles) and would have to be at least as massive as Jupiter, if not more so. Given its distance, it would also be extremely faint and slow moving.

In other research, a professor of physics at the University of Louisiana at Lafayette, Dr. John J. Matese, is making a case for the existence of a 2- to 3-Jupiter mass object orbiting some 2.3 trillion miles from the sun. In a paper soon to be published in the planetary journal, Icarus, Dr. Matese asserts that this object, too, has created a "concentration" of Oort cloud comets and is responsible for sending a significant number of them - perhaps as much as 25 percent - into the inner solar system... Dr. Matese's theory focuses on different aspects of long-period comet orbits, but nevertheless begs the question: could the darkest corner of our solar system harbor a tenth planet or a brown dwarf? A brown dwarf, he contends, would not have been detected in the previous infrared searches, such as the one conducted by the Infrared Astronomical Satellite (IRAS) in the early 1980s, because the alleged planet/brown dwarf is too near the galactic plane. To ferret out such an object in that busy IR region requires greater sensitivity than IRAS possessed at the time.
A mystery revolves around the sun:
Researchers suggest that huge unseen object orbits on fringe of solar system

by Alan Boyle
Oct 7
Speculation about the existence of unseen celestial companions dates back far before the discovery of Pluto in 1929... This latest hypothesis, however, is aimed at answering nagging scientific questions about how particular types of comets make their way into the inner solar system. Some comets, like Halley's Comet, follow relatively short-period orbits - circling the sun in less than two hundred years. These comets are thought to originate in the Kuiper Belt, a disk of cosmic debris that lies beyond Neptune's orbit... Even further out is the Oort Cloud, a spherical haze of comets surrounding the solar system at distances between 10,000 AU and more than 50,000 AU. That's where long-period comets such as Hale-Bopp are thought to come from. For some time, astronomers have noticed that the directional patterns of these comets are not completely random... No telescope has yet detected this object. But on the basis of its gravitational effect, John B. Murray, a planetary scientist at Britain's Open University, speculates that the object could be a planet larger than Jupiter, the biggest of the solar system's known planets... Meanwhile, researchers at the University of Louisiana at Lafayette say the object could be a planet or brown dwarf - that is, a dark, failed star - roughly three times the size of Jupiter and orbiting at 25,000 AU. The researchers, led by physicist John Matese, say their paper is to be published by the journal Icarus... Brian Marsden, who heads the International Astronomical Union's Central Bureau for Astronomical Telegrams as well as the Minor Planet Center at the Smithsonian Astrophysical Observatory... expressed some skepticism about the evidence behind the latest research... Matese noted that theories proposing a correlation between extinctions on Earth and celestial orbits had fallen out of scientific favor in recent years. But he said there could be a "much more gentle" effect that links periodic changes in cratering to the solar system's oscillating motion through the galactic plane.

50 posted on 03/20/2010 7:17:29 PM PDT by SunkenCiv (http://themagicnegro.com/)
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