Comment by dividefuel

Would it be a bigger surprise if Planet 9 existed, or if Planet 9 doesn't exist? This isn't my field of study, but as I understand there's a good amount of indirect evidence for a Planet 9... and still no direct proof. Assuming we're searching in the right areas, if a scan of the first 80% didn't reveal it, it seems unlikely (but of course not impossible) that we'll find it in the last 20%.