The debate about Pluto’s planetary status has simmered down, although I was always partial to the way Alan Stern, the Director of New Horizons mission to Pluto, explained it to me: it’s just a dwarf planet. We don’t call a small dog a different species just because they’re small, we just call it a miniature, something like that makes sense for Pluto and its cohorts like Sedna or Ceres. But we now know Pluto has two new moons, or dwarf moons or moonlets if we want to extend the debate, and SETI wants your help naming them! [Read more…]
