# Planet X - webcentive

Source: https://www.webcentive.com/planetx/  
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Planet X and Nibiru: the facts. Claims that a hidden planet called Nibiru will hit or pass near Earth and cause a doomsday have circulated online since the 1990s, and every predicted date has come and gone. NASA says Nibiru does not exist: there is no telescope evidence and no gravitational effect on the other planets, as there would be if it were real. Separately, some astronomers are looking for a possible distant 'Planet Nine' far beyond Neptune. It has not been found, may not exist, and would pose no threat to Earth. Science sources come first below.  

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- **The facts: no Nibiru is coming (start here)**
- [cneos.jpl.nasa.gov](https://cneos.jpl.nasa.gov/) - NASA Center for Near-Earth Object Studies: real close approaches, tracked daily
- [en.wikipedia.org](https://en.wikipedia.org/wiki/Nibiru_cataclysm) - Wikipedia: Nibiru cataclysm, history of the claim and failed dates
- [jpl.nasa.gov](https://www.jpl.nasa.gov/blog/2009/11/2012-a-scientific-reality-check) - NASA JPL: 2012, a scientific reality check ("Nibiru... simply put, does not exist")
- [jpl.nasa.gov (video)](https://www.jpl.nasa.gov/videos/2012-a-scientific-reality-check/) - NASA JPL video: no Nibiru, nothing hurtling toward us
- [science.nasa.gov (planetary defense)](https://science.nasa.gov/planetary-defense/) - NASA Planetary Defense Coordination Office
- [sservi.nasa.gov](https://sservi.nasa.gov/articles/truth-about-nibiru/) - NASA SSERVI: The Truth About Nibiru (David Morrison explains why it does not exist)
- **The real science: the search for Planet Nine**
- [caltech.edu](https://www.caltech.edu/about/news/caltech-researchers-find-evidence-real-ninth-planet-49523) - Caltech (2016): the Planet Nine hypothesis by Batygin and Brown
- [iau.org](https://www.iau.org/) - International Astronomical Union: names planets and sets definitions
- [rubinobservatory.org](https://rubinobservatory.org/) - Vera C. Rubin Observatory: sky survey searching the outer solar system
- [science.nasa.gov](https://science.nasa.gov/solar-system/planet-x/) - NASA: Hypothetical Planet X (Planet Nine), not observed and may not exist
- [science.nasa.gov (dwarf planets)](https://science.nasa.gov/dwarf-planets/) - NASA: Pluto, Eris and the dwarf planets
- [science.nasa.gov (Kuiper Belt)](https://science.nasa.gov/solar-system/kuiper-belt/) - NASA: the Kuiper Belt beyond Neptune
- [zooniverse.org](https://www.zooniverse.org/projects/marckuchner/backyard-worlds-planet-9) - Backyard Worlds: Planet 9, NASA-funded citizen science
- **Fact-checks and skeptical science**
- [planetary.org](https://www.planetary.org/) - The Planetary Society
- [skepticalinquirer.org](https://skepticalinquirer.org/) - Skeptical Inquirer: science and critical thinking
- [skyandtelescope.org](https://skyandtelescope.org/) - Sky and Telescope: astronomy news and observing
- [snopes.com](https://www.snopes.com/) - Snopes: fact-checks of viral doomsday claims
- [space.com](https://www.space.com/) - Space.com: space and astronomy news

Number of links: 18  
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