Planet 9
The Latest
-
We May Have Already Observed Planet Nine, According To Historical Data
The question of whether a massive "super-Earth" lurks in the far reaches of our solar system is still debated, but we may have already seen it almost 40 years ago. 
The question of whether a massive "super-Earth" lurks in the far reaches of our solar system is still debated, but we may have already seen it almost 40 years ago. -
Planet 9 Is Out There, And It's Not Pluto
The astronomer who demoted Pluto from its planet status predicts the discovery of the elusive ninth planet, a gas giant with six times the mass of Earth. The astronomer who demoted Pluto from its planet status predicts the discovery of the elusive ninth planet, a gas giant with six times the mass of Earth. -
Planet Nine May Be Found By 2030, Scientists Suggest
In ten to 15 years, scientists doing research at the California Institute of Technology or Caltech are confident in discovering Planet 9, which is 37 billion miles away from the Earth. There are two research papers published that show evidence of this. 
In ten to 15 years, scientists doing research at the California Institute of Technology or Caltech are confident in discovering Planet 9, which is 37 billion miles away from the Earth. There are two research papers published that show evidence of this. -
Massive and ‘Invisible’ Planet Nine Might Actually Exist
Somewhere beyond the orbit of Neptune might be a massive trans-Neptunian object (TNO) with 10 times the mass of Earth. This "invisible" and undiscovered planet's highly-elongated and unnatural orbit lasts an astounding 15,000 years. 
Somewhere beyond the orbit of Neptune might be a massive trans-Neptunian object (TNO) with 10 times the mass of Earth. This "invisible" and undiscovered planet's highly-elongated and unnatural orbit lasts an astounding 15,000 years.
