Stellar explosion
The planet Zygor was destroyed in a stellar explosion. (PROSE: Doctor Who and the Loch Ness Monster) In the 20th century, Broton said his world was destroyed in a "recent catastrophe", (TV: Terror of the Zygons) although his conception of time was unconnected to the human time-scale. (PROSE: Doctor Who and the Loch Ness Monster) According to one account, the planet was destroyed because of the Zygon war against the Xaranti. (PROSE: The Bodysnatchers) Most accounts agreed that the Zygons lost their world when it burned during the Last Great Time War, (TV: The Day of the Doctor, WC: Zygon Stats, PROSE: The Whoniverse) with Elizabeth I, who was posing as a Zygon in 1562, claiming it burned during the first days of the conflict. (TV: The Day of the Doctor)