... an unprecedented look at Pluto to reveal vast mountain ranges and evidence for cryovolcanism, as well as suggesting that the dwarf planet could be one giant comet. If Ultima has existed at a temperature of –240° Celsius near its current orbit...
... person to realise this and indeed the International Astronomical Union – the same organisation that demoted Pluto to dwarf planet status – voted to rename Hubble’s law as the Hubble–Lemaître law, in honour of Belgian priest and astronomer...