A small team of planetary scientists from the California Institute of Technology, Université Côte d'Azur and Southwest Research Institute reports possible new evidence of Planet 9. They have published their paper on the arXiv preprint server, and it has been accepted for publication in The Astrophysical Journal Letters.
I find it amusing that we can prove the existence of black holes thousands of light years away and glean the state of the universe at its earliest moments, but we can’t decide whether there’s a rock big enough to count as a planet floating around the inside rim of the Oort Cloud.