Just like our Sun will five billion years from now, KIC 05807616 ran out of hydrogen and expanded into a massive red giant, wreaking havoc on its solar system. The results might just be the planetary equivalent of cell division.
We first noted the discovery of planets KOI 55.01 and KOI 55.02 back in December. They are the first known exoplanets that are smaller than Earth, and their position close to the dying KIC 05807616 means they were once actually inside the outer shell of the red giant. The initial explanation for this was that these two stars were remnants of gas giants that had had their outer layers burned away by their star's blast furnace, leaving behind these tiny cores as essentially brand new planets.