"There are now five different lines of observational evidence pointing to the existence of Planet Nine", Konstantin Batygin, a Caltech planetary astrophysicist, explains.
Planet Nine has been the subject of debate since 2014, when it was first proposed by Caltech experts. These serve as evidence to the planet's existence. A picture published by Futurism.com shows the supposed orbit of the six most distant Kuiper Belt objects and Planet Nine, demonstrating how the latter explains the former.
In January 2016, Batygin and his co-author, Caltech astronomer Mike Brown, published evidence of the footprints left by Planet Nine's. It suddenly consists of five different riddles and you need to offer five different solutions to each one, "he said". Yet it does not completely rule out Planet Nine.
Normally, in other galaxies, planets which are surrounded by their stars, tend to rotate in line with them, but in our solar system, the planets are 6 degrees off from the Sun's axis, according to Express.
The computer simulations of the solar system with planet nine indicate tilted objects.
Following this study, two more clues emerged about Planet Nine.
NASAreiterated that Planet Nine, Nibiru, or whatever people want to call it, is very far away from the Earth and will remain that way. [VIDEO] He also said that these objects have the elliptical orbit, pointing in the same direction, Daily Mail wrote.
"No other model can explain the weirdness of these high-inclination orbits", Batygin said.
In turn, this would now suggest a previously unexplained six degree tilt of planets to the sun's equator is down to Planet Nine.
"The existence of a distant massive planet could fundamentally change the fate of the solar system", said Dr Dimitri Veras of the Department of Physics. "These things have been twisted out of the solar system plane with help from Planet Nine and then scattered inward by Neptune".
"If a planet is there, it's extremely distant and will stay that way (with no chance - in case you're wondering - of ever colliding with Earth, or bringing "days of darkness")".
Luckily for us, humanity has about seven billion years to prepare for this grim eventuality, which will take place when the Sun begins to die.
Researchers are now using the advanced Subaru Telescope, in Hawaii, in the hope of finding out more it and where it came from.
Simply put, the observations that have already been made all point to the existence of a planet that we don't yet know about.