Science fiction flourished from the earliest days of the Soviet Union. A rare space to explore other realms and utopian dreams of progress. But with the Soviet Union's collapse different narratives bubbled up. Many of them reactionary, imperial, violent with one sub genre flourishing above all - Popadantsy: accidental time travel where protagonists return to World War Two or the Imperial past to set the path of Russian history on the 'right' course, Historian Catherine Merridale explores how the once visionary world of Russian science fiction shifted in the time of Vladimir Putin to become a reactionary playground.