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A ninth planet discovered in our solar system?

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune were known. But according to a new study, a ninth planet could have been discovered in our solar system.

This study published in the journal "Research Notes of the AAS" and conducted by a group of scientists shows that the new planet could hide in the TESS (Transiting Exoplanet Survey Satellite) telescope, translating "Census satellite of exoplanets in transit", a space telescope launched by NASA 2018.

TESS, who has already identified more than 1,200 potential exoplanets, will he be able to prove the existence of the new planet, also called "Phattie"? Scientists are at least convinced that the telescope has already observed the new planet whose size (the intensity that a celestial object glows ̵

1; also called "radiation") would be between 19 and 24 (knowing that the more a celestial object is light, the lower is its size, or even negative).

However, it seems difficult to detect Phattie with the help of TESS, because his brilliance is too weak. If the existence of this ninth planet remains hypothetical at the moment, his pursuit of astronomers for several years fascinates, some have advanced the thesis that it would in reality be a black hole the size of a tennis ball.

A recurring theory

In 2016, researchers from the California Institute of Technology were already talking about the existence of the new planet. According to them, it would be at the bottom of the solar system, far behind Pluto.

NASA speaks of a star with a mass ten times larger than the Earth, which can orbit the sun for 10,000 to 20,000 years.

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