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2012: Planet X is not Nibiru

The Solar System’s outer reaches still contain many minor planets yet to be discovered. Ever since the search for Planet X began in the early 20th Century, the possibility of a hypothetical planet orbiting the Sun beyond the Kuiper Belt has fuelled many Doomsday theories and speculation that Planet X is actually the Sun’s long lost binary sibling. But why the fear about the Planet X/Doomsday combination? Surely Planet X is just an unknown, hypothetical object and nothing sinister?

Related 2012 articles:

As I’ve previously discussed in “2012: No Planet X“, doomsayers have linked the modern day search for Planet X, the ancient Mayan 2012 Prophecy and the Sumerian mythical planet Nibiru, culminating in bad news for December 21st 2012. However, the astronomical evidence for these links is seriously flawed.

Yesterday (Wednesday, June 18th), Japanese researchers announced news that their theoretical search for a large mass in the outer Solar System has produced results. From their calculations, there might just be a planet, possibly a bit bigger than a Plutoid but certainly smaller than Earth orbiting beyond 100 AU from the Sun. But before we get carried away, this is not Nibiru, this is not proof of the end of the world in 2012; it is a new and very exciting development in the search for minor planets beyond the Kuiper Belt…

In a new theoretical simulation, two researchers have deduced that the outermost reaches of the Solar System may contain an undiscovered planet. Patryk Lykawka and Tadashi Mukai of Kobe University have published a paper in the Astrophysical Journal detailing a minor planet that they believe may be interacting with the mysterious Kuiper Belt.

Kuiper Belt Objects (KBOs)
Large bodies are known to exist beyond the orbit of Pluto, like Sedna (NASA)

The Kuiper Belt occupies a huge region of space, approximately 30-50 AU from the Sun. It contains a vast number of rocky and metallic objects, the largest known body being the dwarf planet (or “Plutoid”) Eris. It has been known for many years that the Kuiper Belt has a few strange characteristics that may signal the presence of another large planetary body orbiting the Sun beyond the Kuiper Belt. One such feature is the aptly named “Kuiper Cliff” that occurs at 50 AU. This is an abrupt end to the Kuiper Belt, very few Kuiper Belt objects (or KBOs) have been observed beyond this point. This cliff cannot be attributed to orbital resonances with massive planets such as Neptune, and there doesn’t appear to be any obvious observational error. Many astronomers believe that such a sharp cut-off in KBO population may be due to an as-yet to be discovered planet, possibly as large as Earth. This is an object Lykawka and Mukai believe they have calculated to exist.

Eight of the largest trans-Neptunian objects (Wikimedia Commons)

This research predicts a large object, 30-70% the mass of the Earth, orbiting at a distance of around 100-200 AU from the Sun. This object may also help explain why some KBOs and tran-Neptunian objects (TNOs) have some strange orbital characteristics (such as Sedna).

Ever since Pluto was discovered in 1930, astronomers have been looking for another more massive body that could explain the orbital perturbations observed in the orbits of Neptune and Uranus. This search became known as the “search for Planet X”, which literally meant the “search for an as yet unidentified planet.” In the 1980’s these perturbations were put down to observational error. Therefore, the modern-day scientific search for Planet X is the search for a large KBO or a minor planet beyond. Although Planet X may not be larger than the mass of the Earth, researchers are still very excited about finding more KBOs, possibly the size of a Plutoid, possibly a little bigger, but not much bigger.

The interesting thing for me is the suggestion of the kinds of very interesting objects that may yet await discovery in the outer solar system. We are still scratching the edges of that region of the solar system, and I expect many surprises await us with the future deeper surveys.” – Mark Sykes, Director of the Planetary Science Institute in Arizona.

Planet X is not scary
The orbit of the hypothetical planet Nibiru (Sitchin.com)
So where does Nibiru come in? Back in 1976 a controversial book called “The Twelfth Planet” was written by Zecharia Sitchin. Sitchin had interpreted some ancient Sumerian cuneiform texts (the earliest known form of writing) as a literal translation of the origin of humankind. These 6000 year old texts apparently reveal that an alien race known as the Annunaki travelled to Earth on a planet called Nibiru. It’s a long and involved story, but in a nutshell, the Anunnaki genetically modified primates on Earth to create homo sapiens to be their slaves. (I just worked out where the storyline for Kurt Russell’s 1994 movie Stargate probably came from…)

When the Anunnaki left Earth, they let us rule the planet until they return. All this may seem a little fantastical, and perhaps a little too detailed when considering it is a literal translation from 6000 year old texts. Sitchin’s work has been disregarded by the scientific community as many of his methods of interpretation are considered imaginative at best. Nevertheless, many people have taken Sitchin’s work literally, and believe Nibiru (in its highly eccentric orbit around the Sun) will be returning, possibly as soon as 2012 to cause all sorts of terror and destruction here on Earth. It is important to note here that I am not calling into question any archaeological, spiritual or historic evidence for Nibiru, I am simply pointing out the link between the 2012 Doomsday Planet X theory is based on very dubious astronomical “discoveries”; if this is the case, how can Planet X be considered to be the embodiment of Nibiru?

Then there’s the IRAS “discovery of a brown dwarf in the outer Solar System” in 1984 and the “NASA announcement of a 4-8 Earth mass planet travelling toward Earth” in 1993. Doomsayers (often with a book to sell) cling on to these astronomical discoveries as proof that Nibiru is in fact the Planet X astronomers have been searching for over the last century. Not only that, by manipulating the facts about these scientific studies, they “prove” that Nibiru is travelling toward us, and by 2012, this massive body will pass through the inner Solar System, causing all sorts of gravitational damage. For more information on this topic, see “2012: No Planet X.”

In its purest form, Planet X is an unknown, theoretically possible planet orbiting peacefully beyond the Kuiper Belt. If yesterday’s announcement does lead to the observation of a planet or Plutoid, it will be an incredible discovery that will help to shed some light on the evolution and characteristics of the mysterious outer reaches of the Solar System.

But as I write, I can guarantee that doomsayers are adapting this new research to be used as support for their nonsensical theories that Planet X is in fact Nibiru, and it’s coming in our direction by 20 12 2012. Why do I get the feeling we’ll still be here in the year 2013?

Leading image credits: MIT (supernova simulation), NASA (Pluto and Charon). Effects and editing: myself.


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Hello! My name is Ian O'Neill and I've been writing for the Universe Today since December 2007. I am a solar physics doctor, but my space interests are wide-ranging. Since becoming a science writer I have been drawn to the more extreme astrophysics concepts (like black hole dynamics), high energy physics (getting excited about the LHC!) and general space colonization efforts. I am also heavily involved with the Mars Homestead project (run by the Mars Foundation), an international organization to advance our settlement concepts on Mars. I also run my own space physics blog: Astroengine.com, be sure to check it out!

Comments on this entry are closed.

  • Nbiru March 31, 2009, 9:57 AM

    im gay too, i still don’t believe this shit.
    im a pussy asshole!

  • person April 1, 2009, 10:03 PM

    If what your saying is true then explain this http://news.yahoo.com/s/space/20090401/sc_space/hiddenplanetdiscoveredinoldhubbledata. Don’t lie to me

  • Planet X is a Myth April 5, 2009, 6:26 PM

    Planet X is a myth, so we’re not sure if it’s real or not.
    They may have found some stuff in the Hubble Space Telescope, but it could simply be a Plutoid.
    It’s a myth people, no one’s lying to anybody.

  • Murray April 17, 2009, 8:51 AM

    Calm Down! Dont panic! You are walking thru the valley of death, and will only find one way out – the end.

  • jo April 19, 2009, 12:52 PM

    where life ends ,death begins. Who really cares when, how, or why?Accept it as an inevitability and just live.

  • jafrumstra April 19, 2009, 4:27 PM

    I don’t really know why I feel compelled to waste my time writing this comment but since I wasted my time reading this article and most of these posts- I suppose a few more wasted moments are acceptable.

    My hope is that these words might inspire some thoughtful discussion and logical discourse concerning the topic instead of the common knee-jerk reactions that we have come to expect.

    As a scientist, what baffles me most is not how people can believe in God, aliens, or doomsday prophecies; these are all common beliefs with a great multitude of rationales supporting them. Whether the rationales for these beliefs hold up to scrutiny is a moot point. Beliefs are solely the domain of subjective interpretation and as such have little to do with to the process of objective verification.

    What bothers me is how other so-called “scientists” blatantly disregard the principles of empiricism and make proclamations that express certainty concerning these beliefs when the scientific method does not allow for such certainty to exist.

    Conclusions derived from existing data are not proof nor are they “facts” they are quite simply subjective interpretations of the collected data. Objective observations alone are “facts” (but only if they are repeatable and measurable-this is what makes them objective) The beauty of science is that it is a self-correcting system that allows for new evidence to be examined and therefore new conclusions to be drawn.

    Because conclusions are open to verification or refutation by empirical observation true scienctists should never entertain the notion that their conclusions are in anyway authoritative even if their conclusions are universally verified by the scientific community or simply fit with the most popular paradigm as is usually the case.

    This brings us to Mr. O’neill’s (or is it Dr. O’neill?) article- 2012: Planet X is not Nibiru.

    The article itself contains some very good information on KBOs and TNOs but none of this information actually addresses why the minor planet that Patryk Lykawka and Tadashi Mukai of Kobe University believe may be interacting with the Kuiper Belt does not at all fit the Sumerian descriptions of Nibiru as put forth in the work of Zecharia Sitchin.

    In fact, his treatment of “The Twelfth Planet” does not include any of the characteristics of Nibiru described in the work (size, orbital path, number of moons)-which would be necessary if one were going to compare the two alleged objects to show that they are dissimilar.

    O’neill does little more than ridicule the work based on nothing more than his own assertion, “All this may seem a little fantastical, and perhaps a little too detailed when considering it is a literal translation from 6000 year old texts.” His other argument is that, “Sitchin’s work has been disregarded by the scientific community as many of his methods of interpretation are considered imaginative at best.” How is either of those conclusions relevent to establishing the dissimilarity of two equally theoretical objects?

    Nibiru is theorized based on translations of Summerian texts-Planet X is theorized based on a mathematical simulation. How is it that a scientist can make a definitive statement that one theorized object is not the other when neither have been empirically observed nor have they even been compared on their mutually theoretical basis?

    Furthermore, his article does not explain that the theoretical position of this plutoid beyond the fringes of our solar system makes a cataclysmic visitation to our cosmic neighborhood in 2012 impossible according to our current understanding of celestial motion. Instead, he once again stoops to simple mud-slinging and baseless speculation, “In its purest form, Planet X is an unknown, theoretically possible planet orbiting peacefully beyond the Kuiper Belt…I can guarantee that doomsayers are adapting this new research to be used as support for their nonsensical theories that Planet X is in fact Nibiru, and it’s coming in our direction by 2012. Why do I get the feeling we’ll still be here in the year 2013?”

    Notice that I have not assigned any truth values in my examination. My own conclusion is that O’neill’s assertion that Nibiru and Planet X are not the same entity is correct based on the theoretical descriptions of both as I understand them. I simply feel that his presentation of this assertion is noticably lacking, his arrival at said conclusion is without a demonstrated logical foundation, and his understanding of scientific philosophy is fundamentally flawed no matter how learned he may be.

  • Damo April 19, 2009, 7:55 PM

    Very well said Jafrumstra.
    Fair play to you for taking the time out.
    Isn t the internet such a wonderful waste of time . Well i suppose thats the whole point of it…