We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is Nibiru?

By J. MacArthur
Updated May 21, 2024
Our promise to you
All The Science is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At All The Science, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Nibiru, also referred to as Planet X or the 12th planet, is thought to be a distant planet in this solar system with a 3,600-year orbit around the sun. The name means "planet of the crossing," according to translations of ancient Sumerian writings.

The idea of this planet's existence has gained attention in recent years, following a hypothesis Zecheria Sitchin came to after analyzing ancient Sumerian writings documenting stories and pictures about man living among Gods on the Earth. According to this theory, the planet Nibiru was involved in a cataclysmic collision with a planet located between Mars and Jupiter, called Tiamat. It is said that this extraordinary event created the planet Earth, as well as the asteroid belt and the Moon.

Sitchin claims to have discovered evidence of artifacts including stone tablet pictures that depict visits by advanced alien settlers, called Anunnaki. It is said that these extra-terrestrials, who lived on the 12th planet, survived the catastrophic encounter with Earth around 3,600 years ago. They then arrived on Earth searching for gold dust particles to help rebuild the abrupt demise of their atmosphere. According to Sitchin's analysis, these extra-terrestrial guests genetically engineered the human species and used them as slaves in their gold mines.

There are many researchers who have predicted a date when they expect Nibiru’s wide elliptical orbit to once again pass by Earth. This date coincided with the end of the Mayan calendar and Winter Solstice — 21 December 2012. On this date, it was predicted that the Earth, Sun and center of the Milky Way galaxy would align causing a dramatic orbital interruption on Earth's neighboring planets and catastrophic consequences for life on Earth.

While most consider it a Sumerian myth, and maybe even just another impressive tale, there are many believers who embrace Sitchin's claims and still anxiously await the return of the planet Nibiru — despite the fact that the predicted date has come and gone. Scientists argue against the possibility of a planet with a such a unique orbit and overwhelmingly consider Sithin's allegations to be false. The existence of this planet and it's inhabitants, the Anunnaki, are not supported by scientific evidence.

All The Science is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
By anon928983 — On Jan 30, 2014

I think you make perfect sense. It appears to me that the people who are going to a great deal of trouble and using tax payers money for a hoax. Who knows anything about all of what goes on in our universe? The Bible says that God himself will arise and shake terribly the earth. It says the earth will reel to and fro like a drunkard and that it will turn upside down. Our Creator would have the ability to cause that to happen. We will just have to wait and see. --Beverly O.

By anon336319 — On May 27, 2013

I've just been in contact with some "stuff" even the smartest computer on this planet can't comprehend. I'm not sure if it's extraterrestrial or not, but it's definitely not for the the public. It's hard to explain, but I'll attempt it.

Okay, say there's an alphabet compatible material that doesn't contain software but its a solid material. The alphabet is unknown to me and it's like one symbol holds terabytes worth of data. Think if the first word in a sentence is fox. The second word can't contain f,o, or x. See, the English alphabet is not big enough. Now back to the alphabet compatibility. It's like magic or something. Like writing a spell, all letters are involved in helping the material function properly. There is no way for it to malfunction on its own; it has to be acted upon by an outside force.

By anon330114 — On Apr 14, 2013

Neptune is an odd gas giant planet, in an odd position with an odd spin that may have collided with tiamat and made that asteroid belt when it first wandered into our solar system.

No one knows and scientists can't prove it one way or the other. Just look at the Titus-Bode law. Neptune does not fit, and it predicts a planet at the asteroid belt after Mars.

By anon308464 — On Dec 11, 2012

For all of you who think that Planet X is utterly impossible, think again please. Many people refuse to consider this notion because of fear. Open your minds a little. If teleportation is possible, who knows what else is possible? Mind you, teleporting is possible. Scientists have managed to make a roll of dust appear a few feet away from where it disappeared; it was an amazing breakthrough. If there really are other life forms in this incredibly vast universe, some of them ought to be smarter than us.

And also, just because the ancient geniuses were so intelligent doesn't mean they could survive forever. So far, no past empire has survived all the way until now (Not counting our own, new civilization).

Please note that the Nibiru can only be seen at a certain angle, at a certain time of day. And it *has* been visible for some time. The only thing is that it is coming from behind and under the sun, which is why you while have to be very close to either the north/south poles in order to see it. It also has already made many changes in our Earth. Ice caps are melting.

And those of you who say you have "powerful telescopes", exactly what time of day are you looking, what angle are you positioning your telescope, and where are you? You can't just see it from anywhere. You can't just see an eclipse anywhere either, and many people have not had the opportunity. Just because *some* of us have not seen it before does not mean it does not exist.

And the reason why the dates and years of the disaster keep changing? That's because no scientist is such a genius that they can predict the exact date a world disaster. Many important scientific events have been completely off date. It may not happen this year, but that doesn't necessarily mean that the information is fake either.

By anon286930 — On Aug 22, 2012

There are asteroids that barely miss earth regularly and are not seen until they're nearly on us. Why not a planet? Maybe scientists can't see the forest for the trees.

By anon281000 — On Jul 21, 2012

To begin with there is a battle raging that has been going on before creation. There are but two spirits in this world: the spirit of God Almighty and the spirit of Satan. Everything that takes place on planet earth is because good is over evil.

Good comes in the form of Jesus Christ, who will ultimately win in the end, or as the fact that God is all knowing and all of what we live is over and His plan has been accomplished. But in the here and now and in the ages past, Satan in his jealous stupor wants to be like God. He wants to be God, and brings us to the understanding that everything that God does, Satan counterfeits it -- or at least he tries.

One of Satan's greatest attacks is against believers in Jesus Christ that desire to follow Christ in daily living. This can be seen in that Satan is trying to have man not believe in the Bible and its teachings. The Bible predicts that a planet is going to hit the earth, but in the tribulation period, not 2012.

The name of this planet is Wormwood. The prediction of the Mayan Calendar is that on Dec 21, 2012, Nibiru or Wormwood is going to hit the earth. Satan is at work, because the Satan worshipers of the secret societies that are bringing in the New World order predicted by Daniel of world domination. These mad men are planning mass murder of Christians first to rob them of entering in because they fall away. Satan is at work on a very great failure to come.

By anon278369 — On Jul 06, 2012

To the person who says he hates all who don't believe in nibiru, but believe in a God in the sky: first, who said God is in the sky? Second, there is no proof. The two people who started the Nibiru rumours are idiots. Nibiru is the brainchild of Zecharia Sitchin, who claimed to have translated ancient Sumerian texts, and that those texts told the story of the Sumerian gods who inhabited a large planet called Nibiru. According to Sitchin, this planet is in a highly elliptical orbit which brings it close to Earth every 3600 years.

Unfortunately for Sitchin, other linguists have also studied the Sumerian texts and they dispute his 'translation'. In fact, the academics say he's pretty much wrong on every point. Their understanding of the texts leads them to think that 'Nibiru' was the Sumerian word for the planet Jupiter.

Planet X is the brainchild of Nancy Leider, who claims to be in telepathic contact with the inhabitants of Planet X. (something about how they abducted her and implanted a receiver in her head). At various times she has claimed that Planet X was a comet, a gas giant, and a brown dwarf star. Her first prediction about Planet X was that it would hit us in 2003 or 2004. When that passed she moved the goalpoasts to 2012.

Don't be stupid about this. Use logic! There is no scientific evidence.

By anon276316 — On Jun 23, 2012

Why are you all arguing? If it happens, it happens. If it doesn't, we live.

By anon269743 — On May 19, 2012

Please stop with the stupid faster-than-light bull. No planet in any orbit is exceeding the speed of light. There is still no object discovered that breaks that speed limit unless of course you consider Star Trek non-fiction.

I personally rely on NASA and independent experts and professionals to give me the up to date information and to date they still haven't discovered a way for a solid object to exceed light speed or even match it. Astrology is not astronomy and is not science today, except that the constellations are used as spotting tools for reference. Also, your home telescope is not going to see something that is much further away than Pluto. Rogue planets and stars are completely possible and do happen. All it takes is a bump or an elliptical binary dance with another object that is larger and it will happen. I'm just curious what exactly is the planet's orbit. It must be enormous and what havoc is it causing elsewhere when it leaves us. Cool stuff but concerning too.

By anon266530 — On May 06, 2012

How can anyone say this planet doesn't exist? It is clearly written on thousands of tablets that are over 6000 years old. Sitchin just translated the tablets; it's not his opinion. If this is so, then we cannot actually believe anything written in our past that has had to be translated, as this would be the translator's opinion.

We are told what to believe by our governments, churches etc. This is common knowledge. If this new planet is being questioned, it's because it exists. It's the way it is with powerful information. Kept for the few, not the masses!

By anon265759 — On May 03, 2012

You can't see the planet Nibiru because it is not visible from any one point on Earth. It can only be seen from space. That's why. Nibiru is actually called Planet X and they have actually found it. So that is true. Planet X and Nibiru are true. I wonder what else is true if people from thousands of years ago somehow knew about that planet?

By anon262486 — On Apr 19, 2012

The end of the world due to this faux story cannot be accurate coming from a woman who said she had an implant in her brain that allows extraterrestrials to communicate with her!

There are things called evidence and facts! Before you jump to conclusions, look at all the stories and facts before posting nonsense babble.

By anon260701 — On Apr 11, 2012

If the world was really going to end on 12- 21-2012, it would have already happened. Every four years we add a day on to the calendar. So in reality, we are in the year 2013.

By anon244691 — On Feb 02, 2012

Wait, if something is traveling faster than the speed of light, then you would never see it coming.

Unless it was far away enough that you could spot it, but by the time you could see it, the actual distance would be much closer than what your eyes see. My head hurts now. *drools on myself*

By anon241958 — On Jan 21, 2012

Guess how many people lived 3,600 years ago (which is few hundreds) and guess who kills them all (nibiru) and when humans is a first day (100,000 years ago).

Problems? We're all going to die in 11 months, damn it!

By anon164639 — On Apr 01, 2011

Hows about this one, If planet X is in a dual star orbit then it is possible that it is on a collision coarse with what ever is orbiting the other star. Maybe the Sumerians were right, however, we won't know because it was already destroyed. Just thinking outside the box.

By anon160586 — On Mar 16, 2011

Just a hunk of bollocks. If you did you homework about 2012, it's not the end of the world -- just a major event. Based on the Zodiac calendar, we are approaching the end of a Zodiac month in which we transit into the month of Aquarius. We are currently in the month of Pieces Even in scriptures it mentions this.

Luke 22:10 clearly states: "When you have entered the city, a man will meet you carrying a pitcher of water; follow him into the house that he enters."

The image of Aquarius is a man baring a pitcher of water.

So to be honest, you have all read far too much into scriptures from past so get over it, This whole nibiru nonsense? where is it in the sky? i have a powerful telescope and must say it isn't visible.

By anon159852 — On Mar 13, 2011

Come on trekkies. Get real.

By JMart — On Feb 02, 2011

I found it implausible that a body of that mass moving at a faster than light speed in multiple orbits could remain intact after a collision with another body, let alone remain in the same orbit after such a collision.

By anon148207 — On Jan 31, 2011

Couple of things to say.

I would like to say they have proven the existence of Planet Nibiru, and have explained its irregular orbit. It orbits around two different stars, one being our Sun.

Our Sun does have the potential power to cause this elliptical orbit: centrifugal force.

Astronomers would not know of this planet entering the solar system yet, on account of it takes decades for them to send something out of the solar system, and the fact that a planet caught in the gravity well of two stars can move potentially faster then light.

Earth would not have been hit already by this orbit, because, though it orbits every 3600 years, that does not mean Earth was ever on an intercept orbit for it, or that Planet Nibiru's orbit is fluctuating.

The event horizon for impact with an elliptical orbit that large is extremely small. And, since there's the potential that the planet is traveling faster then light, it could be stuck in such an orbit but moving fast enough that it actually just goes through things.

By anon144833 — On Jan 21, 2011

Also Earth was supposedly created billions of years ago and Nibirus caused the creation of Earth. If all that is true, including that Nibirus has a 3,600 year orbit, wouldn't Nibirus have already hit Earth multiple more times (If it wouldn't have already been destroyed).

By anon144832 — On Jan 21, 2011

The calendar doesn't count since the last time this planet hit Earth. It's counting from the birth of Jesus. There was life and Earth and everything before it. That's why there is B.C.E.

By anon137664 — On Dec 28, 2010

If the Mayans and the Sumerians were so incredibly clever, why are the whole lot of them gone? They say quote "Nibiru comes every 3600 years" and creates gravitational chaos causing huge floods. They were reported to be incredibly clever people with a vast knowledge of astronomy yet none of them thought to build a boat? Dumb Mothers if you ask me!

I would like to speak more on this subject but I'm going to get started on building my ark as i don't like leaving things to chance!

By anon135963 — On Dec 21, 2010

To be honest people, i hate all of you who think it's fake because you cannot see yet you believe in god who is in the sky and made the world as if it was like a sim city game or something. All I'm saying is wait and see; that's all you can do.

By anon128641 — On Nov 20, 2010

If some planet is coming by 2012 don't you think even amateur astronomers would be seeing it by now, but they aren't. There is no way a new planet could show up in the solar system and any astronomer with even a tiny backyard telescope, wouldn't notice something new in the sky that close.

By anon128640 — On Nov 20, 2010

If Nibiru is the same as Eris, then there is a major problem. As of 2010 Eris is still way out past Pluto, and no chance it will swing by the earth by 2012 or even 2013. Check with NASA on this. This is all just wishful thinking, but zero basis in science.

By anon127641 — On Nov 16, 2010

planet x is not true because they don't even know when was the last time it passed and if i am correct, if it comes every 3,600 years, it's only been 2,012 years so I don't know. it's all crap.

By anon115112 — On Sep 30, 2010

I'll tell you why Nibiru may not be real and it could be because one of the facts explained here is inaccurate. It goes on to say that Nibiru enters our solar system every 3600 years. But if it is in a collision course with other objects within its journey, then its cycle time will change. Furthermore, if it ever crashed, its course may very well have been changed.

By anon99222 — On Jul 25, 2010

"I think some of these people need some serious mental help because no one knows when the world will end.. not the stupid mayans or whatever!"

So in your opinion some people need mental help and the Mayans were some stupid civilization. So you are not insane and the Mayans were stupid.

Well, I don't know you but as you are thinking, you need four men in white to caring you to that room without windows,if you know what I mean.

And because you weren't in school I have to inform you that the Mayans were the best astrologers in earth history. Think that the planet Neptune was discovered in 1846 and Pluto in 1930.

Do you realize how slow our scientists are? The Mayans were knowing about all our solar system planets already for 5000 years ago, plus other planets which were not discovered yet.

By anon90174 — On Jun 14, 2010

Hey this nibiru is not true! you're scaring us!

By anon86671 — On May 26, 2010

What Sumerian Astronomers named Nibiru and has also been called Wormwood, modern day astronomers have renamed Eris (the causer of strife).

This planet's orbit is roughly every 3600 years and the last time it passed through our solar system was, interestingly enough. in the days of Noah. Go to NASA's website and look it up for yourself. Don't wait for the government to alert you to dangers pending. They have built huge underground cities or what they call installations where they will go to so they can in their own words, "preserve the american way."

By anon69681 — On Mar 09, 2010

dear anybody that thinks planet nibiru isn't real. i have something to tell you: this thing will come close enough to make the gravitational pull to pull the water five miles high and 1,900 miles an hour. it'll go over the planet for as long as anything so remember it is going to happen!

By anon65674 — On Feb 15, 2010

I think some of these people need some serious mental help because no one knows when the world will end but god! And I don't care what god you believe in but there's only one god and he is the one who knows -- not people, not technology, and not the stupid mayans or whatever!

So go do something else but sit here and listen to all this ignorance of people and their stupid myths and "predictions" that are not even going to happen!

And besides we're all going to die at one point so stop worrying about it and live your life! Only god knows when the world is going yo end and that's all up to him, not you!

By anon58704 — On Jan 04, 2010

first of all, i don't think our sun has enough gravitational force to have a planet three or four times the size of the so far out past. pluto that is orbits once every 3600 years, pluto orbits once every 248 years, and its tiny, therefore i understand the gravitational force there, but for a celestial body of that magnitude, our sun would have to be considerably larger.

i just think it's another fairy tale to give us something to worry about. Y2K? what happened there? As for the Mayan calendar ending, there was evidence that the Spanish conquistadors trolled through that area, the astronomical people who created the calendars obviously were up all night mapping, so therefore they would most likely sleep during the day in which the conquistadors arrived slaughtering them, just as history states, they probably burned the bodies and buried any remains in order to keep the massacre of natives a closely kept secret, and the mayan calendar ends.

Just because your car runs out of gas doesn't mean it's the end of the car.

By anon52212 — On Nov 12, 2009

I would like to point out that 3600 years ago was still well within written history and there has been no kind of mention of any cataclysm relating to a planetary near miss.

By anon40438 — On Aug 08, 2009

Although the possibility of such a planet existing is, as the article describes, highly unlikely, I for one am glad I found this article here to prove once and for all for ME that it is indeed bunk. Marginalization of things like this only perpetuate myth. Thank you for clearing things up for me.


By anon27395 — On Feb 27, 2009

Once upon a time the idea that the planet was spherical was a myth and people laughed at the idea.

Just because science cannot see it does not mean it does not exist. Our science is as limited and infinitesimally small as we are.

By anon27111 — On Feb 24, 2009

A body of this size on such an orbit would have been visible for some time now.

This article should be in a "Mythology" or "Archeology" category, if not in "Pseudoscience." It should not be categorized in "Science and Engineering."

Steven K. Smith

All The Science, in your inbox

Our latest articles, guides, and more, delivered daily.

All The Science, in your inbox

Our latest articles, guides, and more, delivered daily.