What exactly is a planet? Controversy over this question led to Pluto’s redefinition, along with a brand-new English word. And: Some people now use the phrase all the things! to mean and whatnot or you know what I mean. This new sense of all the...
In 2006, the International Astronomical Union kicked Pluto off its planetary pedestal. In his delightful book How I Killed Pluto and Why It Had It Coming (Bookshop|Amazon) astronomer Mike Brown recounts the events leading up to the demotion of that...