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planet nine
Our Solar System Might Have a Black Hole From the Dawn of the Universe
This alternate explanation for 'Planet Nine,' proposed by scientists in a new paper, poses some fundamental questions like: Should we visit it?
Mysterious 'Planet Nine' Might Actually Be a Gigantic Disk of Space Objects
'Planet Nine' is thought to be 10 times larger than Earth, but what if it wasn't a planet at all?
Astronomers Find the Most Distant Known Object in the Solar System
Nicknamed “Farout,” the world is 120 times farther from the Sun than Earth.
Search for Planet Nine Turns Up Dwarf Planet at the Edge of Our Solar System
The world called 'Goblin' orbits about two times farther from the Sun than Pluto—and that's at its nearest point.
Twelve New Moons Discovered Orbiting Jupiter
The moons were discovered serendipitously while astronomers hunted for the hypothetical Planet Nine.
NASA Wants You to Be the Rando Who Finds Our Solar System’s Hidden Planet
Crowdsourcing the search for the hypothetical Neptune-sized world at the edge of the solar system.
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Stop Blaming Everything On Planet Nine
Blaming everything on a planet we haven't officially discovered yet is a little premature.
