Could we be going back to a nine-planet solar system?
Scientists believe that there is a Planet Nine or a "Super Earth" in the outer regions of the solar system, according to NASA.
This hypothetical planet is believed to be about 10 times more massive than Earth and is approximately 20 times father from the Sun than Neptune.
Planet Nine is believed to be a giant planet tracing an unusual, elongated orbit in the outer solar system.
The prediction is based on detailed mathematical modeling and computer simulations, not direct observation.
This large object could explain the unique orbits of at least five smaller objects discovered in the distant Kuiper Belt.
It is also believed that it may take 10,000 and 20,000 Earth years to make one full orbit around the Sun.
But don’t get excited just yet: this announcement doesn’t mean there is a new planet in our solar system as the existence of Planet Nine is only theoretical at this point.
"The possibility of a new planet is certainly an exciting one for me as a planetary scientist and for all of us," said Jim Green, director of NASA's Planetary Science Division.
"This is not, however, the detection or discovery of a new planet. It's too early to say with certainty there's a so-called Planet X. What we're seeing is an early prediction based on modeling from limited observations. It's the start of a process that could lead to an exciting result," said Green
Some of us are still mourning the loss of Pluto, so this news from NASA (hypothetical or not,) is really brightening our day.