A failed Soviet spacecraft launched more than half a century ago is expected to plummet back to Earth early on Saturday, just one day after Vladimir Putin’s Victory Day parade in Moscow. The reentry window for the Cosmos 482 Venus lander opens at 6am UTC (7am UK time), with a three-hour margin of error. According to NASA, potential impact zones include “the Pacific, Atlantic, and Indian Oceans,” but the decaying spacecraft could also come down over “parts of North and South America, Europe, Asia, or Australia”.