Education logo

The Mystery of Planet X

Why Can’t Scientists Spot This Elusive Celestial Body?

By Horace WaslandPublished about a year ago 3 min read

In our ever-advancing age of science and technology, it’s tempting to think we’ve already uncovered most of the secrets our universe holds. However, even as we unravel the inner workings of galaxies light-years away, our own solar system still hides mysteries yet to be fully understood. One of these enigmas is the potential existence of a massive, undiscovered ninth planet, often referred to as Planet X.

The Hypothesis of Planet Nine

The search for a ninth planet isn’t a new endeavor. Over a century ago, astronomer Percival Lowell became convinced that an unknown planet was influencing the orbits of Uranus and Neptune. This hypothetical planet, which Lowell called Planet X, was never found in his lifetime, leading many to dismiss the idea. However, the discovery of Pluto in 1930 reignited interest, though Pluto’s small size and mass quickly showed it couldn’t account for the gravitational anomalies observed.

Fast forward to 2016, and astronomers Konstantin Batygin and Michael Brown presented a compelling case for a new ninth planet. They based their hypothesis on the peculiar orbits of several distant objects in the Kuiper Belt. These objects exhibited unusual, clustered orbits that couldn’t be easily explained by the current model of the solar system. Batygin and Brown proposed that a massive, unseen planet was exerting a gravitational influence on these Kuiper Belt Objects (KBOs).

The Elusive Nature of Planet Nine

Planet Nine, if it exists, is estimated to be about ten times the mass of Earth and four times its radius. Despite its size, it remains undetected due to its hypothesized location, around 600 astronomical units (AU) from the Sun. To put that into perspective, Neptune, the outermost known planet, orbits at about 30 AU. This vast distance makes Planet Nine incredibly faint and difficult to observe with current telescopic technology.

Moreover, Planet Nine is thought to be a “stealthy puppet master,” subtly adjusting the orbits of distant asteroids and dwarf planets with its gravitational pull. Its potential distance from the Sun means it reflects very little sunlight, appearing as an extremely dim object in the sky.

Challenges in Detection

Detecting such a distant and faint object presents significant challenges. The primary method used to discover exoplanets, transit photometry, is ineffective for finding planets within our solar system beyond the orbits of the known planets. This method relies on detecting the slight dimming of a star as a planet passes in front of it, an event that requires perfect alignment between the star, the planet, and Earth. For distant objects like Planet Nine, we rely on direct observation through powerful telescopes, which is like looking for a needle in a cosmic haystack.

Current telescopes can only scan a small portion of the sky at a time, and perfect atmospheric conditions are rare. Additionally, the region where Planet Nine is suspected to reside is vast, making the search akin to finding a single grain of sand on a beach.

Alternative Theories and Future Prospects

While the evidence supporting Planet Nine’s existence is compelling, it’s not conclusive. Some scientists suggest alternative explanations for the unusual orbits of KBOs, such as the presence of a primordial black hole or even unknown aspects of gravitational physics.

Despite these challenges, astronomers remain optimistic. Advances in technology, such as the upcoming Vera C. Rubin Observatory, promise to provide more powerful tools for scanning the sky and might finally reveal Planet Nine. Until then, the mystery remains unsolved, and the search continues.

In conclusion, while we’ve made significant strides in understanding our universe, the potential existence of Planet Nine reminds us of how much there is still to discover. The search for this elusive planet is a testament to human curiosity and our relentless pursuit of knowledge, even in the face of daunting challenges.

degree

About the Creator

Horace Wasland

Research analyst, writer & mystical healer. Exploring the edge where science meets mystery. From mystery/the mystical, to facts, news & psychology. Follow for weekly insights on all four and please leave a tip if you like what you read :)

Reader insights

Be the first to share your insights about this piece.

How does it work?

Add your insights

Comments (3)

Sign in to comment
  • Alyssa wilkshoreabout a year ago

    Thanks for sharing

  • Mariam Fathalrahmanabout a year ago

    very interesting

  • Latasha karenabout a year ago

    Nice work

Find us on social media

Miscellaneous links

  • Explore
  • Contact
  • Privacy Policy
  • Terms of Use
  • Support

© 2026 Creatd, Inc. All Rights Reserved.