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

You may remember that before 2006, we were taught in school that there were nine planets in the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. However, from August 24, 2006, Pluto was excluded from the list of planets, and a year earlier this celestial body was removed from the ‘planet’ category and designated as a ‘dwarf planet’. But recently, scientists at Kindai University in Japan published a study showing the existence of a ninth planet in the solar system, located beyond the orbit of Neptune.

In ancient times, man realized that in the night sky there were five “wandering” stars whose positions were constantly changing as months and seasons passed (hence the name planet, meaning ‘to wander’). It was not until 1781 that a new planet was added to the known solar system 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 subject of the ninth planet, this celestial body was temporarily known as the ninth planet or the ninth planet or Fat, It is believed to be a giant ice planet of enormous size, possibly occurring 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 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 deviations in Neptune’s orbit could be caused by the influence of a planet. According to computer calculations, this hypothetical planet may have a mass slightly greater than the mass of Earth and its location can be determined as 250 kilometers away. Astronomical units (au), which translates to a distance equal to 250 times the distance between the Sun and Earth.

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