Did you know This Secret planets ?

"Planet 9: The Hidden World"

Astronomers believe there might be a giant, hidden planet lurking in the outer reaches of our solar system. Planet 9, as it’s called, could be 10 times the mass of Earth and 20 times farther from the sun than Neptune. Scientists can’t see it yet, but strange gravitational forces on distant objects suggest it’s there. Is this the ninth planet in our solar system, or could it be something more mysterious, like a rogue planet or even a mini black hole?