New analysis weakens — but doesn't kill — the case for Planet Nine (UPDATED)

A paper just published by a team of astronomers looks at the evidence for the idea that another major planet, nicknamed Planet Nine, orbits the Sun far beyond Neptune. What they found casts doubt on the case to suppose the planet is out there. At the same time, they cannot say the evidence points toward the planet not existing.

[UPDATE (Feb. 16, 2021 at 20:30 UTC): Mike Brown, one of the astronomers looking for Planet Nine, weighed in on this paper not long after I posted this article. He shows...