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www.ask.com/science/planet-x-real-321cae3e619c6b96

Planet X is a hypothetical planet purported to be on a collision course with the Earth, though this hypothesis has been refuted by most of the mainstream astronomical community. Ho...

Planets beyond Neptune

en.wikipedia.org/wiki/Planets_beyond_Neptune

While today the astronomical community widely agrees that Planet X, as originally envisioned, does not exist, the concept of an as yet unobserved planet has ...

Astronomers say a Neptune-sized planet lurks beyond Pluto - Science

www.sciencemag.org/news/2016/01/feature-astronomers-say-neptune-sized-planet-lurks-unseen-solar-system

Jan 20, 2016 ... If Planet X is out there, Brown and Batygin say, astronomers ought to find more objects in telltale orbits, shaped by the pull of the hidden giant.

Planet X, Nibiru, Ancient Astronauts, NASA, UFO's - Xfacts.com

xfacts.com/x2.htm

NASA themselves officially recognized the possibility of Planet X, with an announce-ment that 'some kind of mystery object is really there - far beyond the ...

space.about.com/od/astronomynews/a/planetx.htm
"It will be visible with a telescope over the next six months and is currently almost directly overhead in the early-morning eastern sky, in the constellation Cetus," said Brown, who made the discovery with colleagues Chad Trujillo, of the Gemini Observatory in Mauna Ke... More »
By Nick Greene, About.com Guide

Hypothetical 'Planet X' - Overview | Planets - NASA Solar System ...

solarsystem.nasa.gov/planets/planetx

Caltech researchers have found evidence suggesting there may be a.

Astronomers Skeptical about "Planet X" Claims - Scientific American

www.scientificamerican.com/article/astronomers-skeptical-over-planet-x-claims/

Dec 10, 2015 ... This artist's rendition depicts the dwarf planet Eris, a trans-Neptunian object discovered in 2003 that eventually unseated Pluto from its ...

Evidence grows for giant planet on fringes of Solar System : Nature ...

www.nature.com/news/evidence-grows-for-giant-planet-on-fringes-of-solar-system-1.19182

Jan 20, 2016 ... A century after observatory founder Percival Lowell speculated that a 'Planet X' lurks at the fringes of the Solar System, astronomers say that ...

Planet X or Nibiru is headed for Earth, doomsayers believe - NY ...

www.nydailynews.com/news/national/planet-x-nibiru-headed-earth-doomsayers-article-1.2504846

Jan 21, 2016 ... Could the newly-discovered "Planet Nine" actually be Planet X?

NASA's 'Planet X' Files Leaked: NASA Knows Nibiru Is Coming ...

www.inquisitr.com/2259891/nasas-planet-x-files-leaked-nasa-knows-nibiru-is-coming-says-conspiracy-theorists/

Jul 17, 2015 ... There is evidence of an ongoing resurgence of the Planet X (also known as Nibiru) cataclysm conspiracy theory following the publication of ...

Popular Q&A
Q: What is Planet x?
A: A planet after the dwarf planet pluto It Is A Name For A Unnamed And Unconfirmed Planet Read More »
Source: wiki.answers.com
Q: Where is planet X?
A: Planet X is an informal name for the planet Pluto [See related question] however in later years it has come to be named as the hypothetical and 2012 disaster pl... Read More »
Source: wiki.answers.com
Q: What is the density of planet x.
A: Mass of Planet X divided by volume of Planet X. Read More »
Source: www.answers.com
Q: How big is planet x.
A: Planet X was the term used for a hypothetical unknown planet to explain certain discrepancies in the orbits of the other planets. It later turned out that the d... Read More »
Source: www.answers.com
Q: How to is planet x real?
Source: www.chacha.com