Water, water everywhere / Nor any drop to drink⠀ ⠀ Once upon a time, back in a period we call the Archean eon, around 3.5ish billion years ago, that line from The Rime of the Ancient Mariner may have accurately described the planet we call Earth.⠀ ⠀ Read my full story: buff.ly/3wSKxXi⠀ ⠀ IMAGE: An artist’s rendering of Earth during the Archean eon, with a hazy atmosphere, few landmasses and a global ocean. CREDIT: Alec Brenner, Harvard University⠀ ⠀ #planetaryscience #geology #archean #earth #waterworld #harvard #illustration #sciart #water #mantle