I clump these names together because I believe it is one object with many names. I may be completely wrong about that, but let’s just assume it is the same object reported about in past writings.
Plus, you have to keep in mind of the known events that have occurred in earth's and our solar system’s past.
It is hypothesized that the passing of a planet through this solar system could be the reason why some of the extreme and violent events have occurred. A planet that comes through this solar system every 3600 years could be disastrous. The gravitational pull of a planet entering the inner solar system would have profound effects on the other orbiting bodies, including Earth. Because it is believed Nibiru is the size of Jupiter, the Earth would be in for some massive and catastrophic changes of floods, earthquakes, volcanic eruptions, a pole shift and other natural disasters which would be so severe that very few would survive.
Could a planet that size create that much chaos in our solar system? The answer is, yes. Is the planet a piece of Sumerian/Bible fiction? That remains to be seen.
There are several different factions that look to the planet Nibiru. The Sumerians are the key ingredient in this belief. In fact, the Anunnaki story says that a previous appearance of Nibiru was responsible for the "Great Flood" recorded in Genesis. Going even further back, some researchers into this topic suspect that Nibiru once collided with Earth resulting in the enormous gouges in our planet that the oceans now fill.
As referred to by Sitchen’s research
In 1976, the late Zecharia Sitchin stirred up a great deal of controversy with the publication of his book, The Twelfth Planet. In this and subsequent books, Sitchin presented his literal translations of ancient Sumerian texts which told an incredible story about the origins of humankind on planet Earth. His interpretation of Mesopotamian iconography and symbol-ology, outlined in his books that there is an undiscovered planet beyond Neptune that follows a long, elliptical orbit, reaching the inner solar system roughly every 3,600 years. This planet is called Nibiru. According to Sitchin, Nibiru collided catastrophically with Tiamat, which he considers to be another planet once located between Mars and Jupiter. This collision supposedly formed the planet Earth, the asteroid belt, and the comets. Sitchin states that when struck by one of Nibiru's moons, Tiamat split in two. And then on a second pass Nibiru itself struck the broken fragments and one half of Tiamat which became the asteroid belt. The second half, struck again by one of Nibiru's moons, was pushed into a new orbit and became today's planet Earth. Nibiru is a term in the Akkadian language, translating to "crossing" or "point of transition", especially of rivers, river crossings or ferry-boats. Scholars calculate the planet was last in this vicinity around 160 B.C.
As referred to by Babylon
In Babylonian astronomy, nibiru is a term of the highest point of the ecliptic, the point of summer solstice and its associated constellation of Libra and Nibiru was also a name for the planet Jupiter. The establishment of the nibiru point is described in tablet 5 of the creation epic Enûma Eliš"
When Marduk fixed the locations of Nibiru, Enlil and Ea in the sky.
As the highest point in the paths of the planets, nibiru was considered the seat of the summus deus who pastures the stars like sheep, in Babylon identified with Marduk. This interpretation of Marduk as the ruler of the cosmos suggesting an early monotheist tendency in Babylonian religion by various authors. Nibiru whose name was replaced with Marduk in original legends by the Babylonian ruler of the same name in an attempt to co-opt the creation for himself, leading to some confusion among readers. Nibiru is described more closely on a complete cuneiform tablet:
Nibiru, which is said to have occupied the passageways of heaven and earth, because everyone above and below asks Nibiru if they cannot find the passage. Nibiru is Marduk's star which the gods in heaven caused to be visible. Nibiru stands as a post at the turning point.
The others say of Nibiru the post: "The one who crosses the middle of the sea without calm, may his name be Nibiru, for he takes up the center of it". The path of the stars of the sky should be kept unchanged.
In the MUL.APIN, Nibiru is identified as Jupiter associated with the god Marduk in Babylonian cosmology:
"When the stars of Enlil have been finished, one big star – although its light is dim – divides the sky in half and stands there: that is, the star of Marduk, Nibiru, Jupiter; it keeps changing its position and crosses the sky."
Although the word wormwood appears several times in the Old Testament, translated from the Hebrew term לענה, its only clear reference as a named entity occurs in the New Testament, in the book of Revelation:
"The third angel blew his trumpet, and a great star fell from heaven, blazing like a torch, and it fell on a third of the rivers and on the springs of water. The name of the star is Wormwood. A third of the waters became wormwood, and many died from the water, because it was made bitter." (Revelation 8:10–11, New Revised Standard Version).
"Wormwood" is the name of a star in Revelation 8:10-11: This is the third of the seven “trumpet judgments” described in Revelation. The first trumpet causes hail and fire that destroy much of the plant life in the world. The second trumpet brings about what seems to be a meteor, comet, or other heavenly body hitting the oceans and causing the death of one-third of the world’s sea life. The third trumpet is similar to the second, except it affects the world’s lakes and rivers instead of the oceans. It will cause a third part of all fresh water on earth to turn bitter and many people will die from drinking it.
The word “wormwood” is mentioned only here in the New Testament, but it appears eight times in the Old Testament, each time associated with bitterness, poison and death. The Revelation passage may not be saying that the star falling to the earth will actually be called Wormwood by the inhabitants of the earth. Rather, wormwood was a well-known bitter herb in the Bible times, so by naming the star Wormwood, we are told that its effect will be to embitter the waters of the earth, so much so that the water is undrinkable. It won’t be a matter of simply a bitter taste to the water; it will literally be poisonous. If drinking water is unavailable to one third of the earth’s population, it’s easy to see how chaos and terror will result.
There is even speculation that the Vatican is tracking the position of Wormwood/Nibiru.
Father Malachi Martin was interviewed by Art Bell as saying that the Vatican hierarchy, through research at its astronomical observatory, is monitoring the approach of something that could be "of great import" in the coming years.
I read an account on another site saying the gravitational pull of Wormwood/Nibiru might even stop the Earth's rotation for three days, citing the "three days of darkness" predicted in the Bible.
Even mainstream astronomers have long speculated that there may be an unknown planet, a Planet X, somewhere out beyond the orbit of Pluto that would account for the anomalies they were detecting in the orbits of Neptune and Uranus. They believed that some unseen body seems to be tugging at them.
Following the discovery of the planet Neptune in 1846, there was considerable speculation that another planet might exist beyond its orbit. The search began in the mid-19th century and culminated at the start of the 20th with Percival Lowell's quest for Planet X. Lowell proposed the Planet X hypothesis to explain apparent discrepancies in the orbits of the gas giants, speculating that the gravity of a large unseen ninth planet could have perturbed Uranus enough to account for the irregularities. In 1915, he published his Memoir of a Trans-Neptunian Planet, in which he concluded that Planet X had a mass roughly seven times that of the Earth, and about half that of Neptune, and a mean distance from the Sun of 43 AU. He assumed Planet X would be a large, low-density object, like the gas giants. As a result it would show a disc with diameter of about one arc second and an apparent magnitude of between 12 and 13—bright enough to be spotted.
The search was largely abandoned in the early 1990s, when a study of measurements made by the Voyager 2 spacecraft found that the irregularities observed in Uranus's orbit were due to a slight overestimation of Neptune's mass. Today, the astronomical community widely agrees that Planet X, as originally envisioned, does not exist, but the concept of Planet X has been revived by a number of astronomers to explain other anomalies observed in the outer Solar System. In popular culture, and even among some astronomers, Planet X has become a stand-in term for any undiscovered planet in the outer Solar System, regardless of its relationship to Lowell's hypothesis.
And then there was Sedna
The finding was reported in the June 19, 1982 edition of the New York Times:
"Something out there beyond the furthest reaches of the known solar system is tugging at Uranus and Neptune. A gravitational force keeps perturbing the two giant planets, causing irregularities in their orbits. The force suggests a presence far away and unseen, a large object, the long-sought Planet X."
The anomalous body was first spotted in 1983 by IRAS (Infrared Astronomical Satellite), according to news stories. The Washington Post reported:
"A heavenly body possibly as large as the giant planet Jupiter and possibly so close to Earth that it would be part of this solar system has been found in the direction of the constellation Orion by an orbiting telescope aboard the U.S. infrared astronomical satellite. So mysterious is the object that astronomers do not know if it is a planet, a giant comet, a nearby 'protostar' that never got hot enough to become a star, a distant galaxy so young that it is still in the process of forming its first stars or a galaxy so shrouded in dust that none of the light cast by its stars ever gets through."
An article posted by MSNBC on October 7, 1999 said:
"A Mystery Revolves Around the Sun, two teams of researchers have proposed the existence of an unseen planet or a failed star circling the sun at a distance of more than 2 trillion miles, far beyond the orbits of the nine known planets... Planetary scientist at Britain's Open University, speculates that the object could be a planet larger than Jupiter."
And in December, 2000, SpaceDaily reported on "Another Candidate For 'Planet X' Spotted."
Another article and photo appeared in Discovery News, published in July, 2001, says:
"Large Object Discovered Orbiting Sun. The discovery of a large reddish chunk of something orbiting in Pluto's neighborhood has re-ignited the idea that there may be more than nine planets in the solar system."
Naming it 2001 KX76. the discoverers estimate that it is smaller than our Moon and might have an elongated orbit, but they gave no indication that it was heading this way.
This continues to be a highly controversial issue.
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