Backyard Worlds: NASA is asking for volunteers to help find the hypothetical Planet 9

Some astronomers think in our outer solar system there’s a giant, undiscovered world hiding and they call it (for obvious reasons) Planet Nine. Whether it exists, it could be 5-10 times the size of the Earth and orbit Sun hundreds of times farther away than Earth orbiting Sun. Now, a NASA citizen science project called …

Planet Nine might not exist, many astronomers now think

Planet Nine is a theoretical, undiscovered giant planet in the mysterious far reaches of our solar system. The presence of Planet Nine has been hypothesized to explain everything from the tilt of the sun’s spin axis to the apparent clustering in the orbits of small, icy asteroids beyond Neptune. But does Planet Nine actually exist? …

Planet Nine – Where is it?

In January 2015, Caltech (California Institute of Technology) astronomers Konstantin Batygin and Michael E. Brown published an article titled Evidence For A Distant Giant Planet In The Solar System and announced calculation-based evidence of a massive ninth planet. Despite they have had started their research to demonstrate that there’s no ninth planet, they reached the …

Astronomers Think There is a 9th Planet Beyond Pluto – And It’s a Giant!

Astronomers now think there’s a 9th planet in the solar system almost certainly (hint: it’s not Pluto). The farthest planet from our Sun is probably a giant, smaller than Neptune but likely larger than the Earth. It is informally called Phattie, but commonly known as Planet Nine.