We Never Know
No Slack
Where's Waldo
"Astronomers had found all eight of the main planets by 1846. But that doesn't stop us from looking for more. In the past 100 years, we've found smaller distant bodies we call dwarf planets, which is what we now classify Pluto as.
The discovery of some of these dwarf planets has given us reason to believe something else might be lurking in the outskirts of the Solar System.
Could there be a ninth planet?
There's a good reason astronomers spend many hundreds of hours trying to locate a ninth planet, aka " Planet Nine" or "Planet X". And that's because the Solar System as we know it doesn't really make sense without it."
A Giant Planet Seems to Be Lurking Somewhere in Our Solar System : ScienceAlert
"Astronomers had found all eight of the main planets by 1846. But that doesn't stop us from looking for more. In the past 100 years, we've found smaller distant bodies we call dwarf planets, which is what we now classify Pluto as.
The discovery of some of these dwarf planets has given us reason to believe something else might be lurking in the outskirts of the Solar System.
Could there be a ninth planet?
There's a good reason astronomers spend many hundreds of hours trying to locate a ninth planet, aka " Planet Nine" or "Planet X". And that's because the Solar System as we know it doesn't really make sense without it."
A Giant Planet Seems to Be Lurking Somewhere in Our Solar System : ScienceAlert