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Planet X

Farout

Farout! Astronomers identify the most distant known object in our solar system

Astronomers say they’ve discovered the most distant body ever observed in our solar system, a potential dwarf planet that’s about… Read More

Subaru Telescope

Search for Planet Nine turns up a way-out dwarf planet that’s called ‘The Goblin’

While searching for a hypothetical Planet Nine, astronomers found a distant mini-world that’s been given a spooky nickname: “The Goblin.”… Read More

Planet Nine

Astronomers are seeing more signs of undiscovered Planet Nine’s influence

Astronomers haven’t yet seen Planet Nine, the theoretical world that some say lies far beyond Pluto’s orbit, but they’re seeing more… Read More

Planet X / Planet Nine

Hunt for Planet Nine leads to mini-worlds

The hypothetical world known as Planet X or Planet Nine hasn’t yet been found, but thanks to the search, astronomers have discovered smaller… Read More

Image: Distant planet

‘Planet Nine’? Astronomers boost the case for a large, unseen Planet X

For decades, astronomers have gone back and forth over whether a “Planet X” exists on the edge of our solar… Read More

Faraway world

Planet X? Probably not, but ALMA telescope array’s readings stir up debate

An array of radio telescopes in Chile has picked up weird readings that appear to be coming from far-out objects… Read More

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