Pluto, revisited

Posted on Posted in Physical Geography, space (not spatial)

The news that NASA discovered a new type of microorganism has overshadowed new findings on Pluto. The Christian Science Monitor presents both sides of the debate, “Should Pluto be Restored as a Planet?” According to Mike Wall from, Pluto was found to be slightly larger than Eris, the entity that supplanted it, re-opening the debate if it should be restored as a full-fledged planet. Discovery News details the method used to compare the size of Eris and Pluto. In several articles Mike Brown, who discovered Eris and wrote the appropriately titled book, “How I Killed Pluto and Why it Had it Coming” states that the most important part of the discovery isn’t about size but the fact that Eris is much denser than Pluto and thus a totally different composition and origin. In his posts on Mike Brown’s Planets he describes the Skymapper project to survey the whole southern skies by Australian National University.