planet 9

Scientists have long been hunting for a hidden planet in our Solar System — and new research suggests that it's out there. 

Ninth Rock

There may be a ninth planet after all.

Scientists Say They've Found More Evidence of Hidden Planet in Our Solar System

Researchers Researchers are suggesting that in the orbit of the Milky Way's sun may be a free-floating "primordial black hole" — or even more than one.are suggesting that the Sun's orbit might have captured a free-floating "primordial black hole" — or even more than one.

Sky Dance

In a mind-bending new paper, researchers suggest that there could be black holes orbiting the Sun, out past Pluto.

Astrophysicists: There May Be Black Holes Orbiting Our Sun

It seems we have a new member of our solar system, and it may be ten times more massive than Earth.

NASA Press Release Says Our Solar System Has a 9th Planet

There may be another planet beyond Neptune, but we probably didn't steal it from another sun. 

Planet 9 Probably Isn't an Exoplanet, After All

It takes 1,100 years to make one trip around the Sun.

Astronomers Found an Enormous Object Orbiting at the Edge of Our Solar System

crowdsourcing citizen science project planet 9 skymapper telescope

In just three days, their hunt turned up potential replacements for Pluto.

Planet 9 Found? Astronomers Have Officially Found A Candidate

One of the most anticipated pieces of space hardware will be looking for one of the solar system's biggest mysteries.

Priority Target for the James Webb Space Telescope? The Hypothetical Planet 9

The first alien world we visit may actually be in our own solar system.  

An Alien in Our Solar System: Planet 9 Might Have Once Belonged to Another Star

Astronomers just discovered new evidence of a 9th planet in our solar system. 

The Case for Planet Nine Just Got a Whole Lot Stronger

planet 9

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