For those who play KSP: The Apocalypse Kraken is a bug of unknown cause and unknown rarity. Little is known about this bug because it has been recorded only once. This report has not been confirmed. It causes the craft to accelerate to ridiculous speeds, exiting the solar system in seconds. After leaving the solar system, the map shows empty space. Reverting the flight will return the craft to Kerbin, but the map will remain empty. No sun or Mun will appear in the sky, and Kerbin experiences an eternal night. This affects all save files, lasting until the game is reinstalled. (There's a video on YouTube about someone breaking the physics engine so badly that it triggers the Apocalypse Kraken)
