Fimbul Blizzard

Satan's World.

David Falkayn learns about the rogue planet that he will later name "Satan":

rogue planets, from superjovian to asteroidal, outnumber the stars by a thousand or more;

Satan condensed in a primordial nebula when dust, gravel, stones and meteoroids coalesced over million years;

infall, radioactivity and compression released energy, causing earthquakes and volcanoes;

however, in the absence of heat, oceans froze and gases solidified;

"...a Fimbul blizzard..." (III, p. 354) may have lasted for centuries (see Naming A Planet and Ragnarok);

sheathed in ice perhaps older than Earth, Satan would have drifted till the end of time but...