The planet that started the row which ended with Pluto’s demotion has been named. It’s lost its Warrior Princess nickname Xena and is called Eris after – rather suitably – the Greek god of discord and strife. It’s moon has also been aptly christened Dysnomia after Eris’s daughter, a “demon spirit of Lawlessness”.

I am, of course, disappointed that the IAU didn’t call it Mondas.