Is there a planet outside the solar system? This is what science says – teach me about science

You may remember that, in school, before 2006, we were taught that there were 9 planets in the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. However, as of August 24, 2006, Pluto was excluded from the list of planets, and one year earlier, this celestial body was removed from the “planet” category and designated as a “dwarf planet.” But recently, scientists from Kindai University in Japan published a study indicating the existence of a ninth planet in the solar system, which can be found outside the orbit of Neptune.

In ancient times, man realized that in the night sky there were 5 “wandering” stars whose positions constantly changed with the passage of months and seasons (hence the name planet, which means “wandering”). A new planet was not added to the solar system known to humans until 1781, with the discovery of Uranus. We owe this discovery to William Herschel. In 1846, the planet Neptune was discovered, with almost 100 years to go before another planet was discovered: in 1930, Clyde William Tombaugh was the lucky discoverer of Pluto.

Returning to the topic of the ninth planet, temporarily, this celestial body was known as the ninth planet or the ninth planet or Fatty, It is believed to be a giant ice planet of enormous size, which may exist in the outer solar system. According to the study published in astronomical magazine, The orbits of trans-Neptunian objects may indicate the presence of an undiscovered planet in the outer solar system. Trans-Neptunian objects can reveal important information about the formation and dynamical evolution of giant planets.

It is believed that this planet could be the fifth gaseous planet to be ejected from the inner solar system, according to the NICE model, which explains the strange orbits of two groups of objects in the Kuiper Belt. This is why some scientists rely on the theory that anomalies in Neptune's orbit may be caused by the influence of a planet. According to computer calculations, this hypothetical planet may have a mass slightly greater than the Earth's mass and its location can be determined 250 kilometers away. Astronomical units (au), which translates to a distance equivalent to 250 times the distance between the Sun and Earth.

Although some telescopes, such as the Wide Field Infrared Explorer (WISE) and Pan-STARRS, were unable to discover a planet that matches scientists' hypotheses, they do not rule out the existence of a world with a dimension similar to the dimension of one ice. Giant Neptune in the distant outer solar system. For reasons that it has not yet been observed with the naked eye or with a telescope, until its existence is proven, this planet remains just a hypothesis.