Want to find Planet Nine? Here's a treasure map.

Do you want to be the first person in 175 years to discover a new planet in our solar system?

Just follow the map.

Well, it’s not all that easy. You’ll need a huge telescope, lots of time, and at least some understanding of what you’re looking for and why. Let me help.

For the past twenty years or so a growing number of astronomers think that there may be another large planet in our solar system well beyond Neptune. Nicknamed Planet Nine*, its existence is inferred from the behavior of a grou...