The scientists speculate that Planet Nine could be roughly 10 or 15 times bigger than the Earth. Why would such a big plan go unnoticed for a long time? Well, if Planet Nine actually exists, its orbit is absolutely massive and stretches out further from the Sun than any other Solar planet. It also probably has a stretched out, elliptical orbit which means that it can travel very far away from the sun and it would take many years for it to return close to the sun where we could see it.
Despite that, thousands of volunteers together with scientists teamed up to scan through thousands of data images to look for a sign of it. And those who believe in Planet Nine’s existence think that we could find it within the next 15 years.In the “Backyard Worlds: Planet 9” project, an initiative that seeks people from all over the world to look through images, there are currently 53,337 volunteers scanning through the pics looking for this enigmatic planet. Oh, and if trying to locate a mysterious dark planet is up your alley, you can join them!