No sign of Planet Nine

The hypothesis that there is a giant planet at the fringes of the Solar System has been dealt a blow by an analysis of distant, icy objects. The findings cast doubt on the evidence that the six trans-Neptunian objects (including Pluto) are under the gravitational pull of a huge planet. The research doesn’t rule out the possibility of a ninth planet orbiting the Sun, and astronomers need more data to put the debate to rest.