I came across this article today when looking to see how light bends liquid, it returned thoughts of merging galaxies and planets as wandering stars :) and I like how it is not defined as new
from page 2
But how did a star form a planet?
The star may have already swallowed other planets in its orbit, making the star spin more quickly and meaning that time is running out for the surviving exoplanet.
Astronomers were mystified as to how the planet might have formed, since the star contained few elements heavier than hydrogen and helium and planets typically form out of a complex cloud of spinning space rubble.
“It is a puzzle for the widely accepted model of planet formation to explain how such a star, which contains hardly any heavy elements at all, could have formed a planet,” said Setiawan. “Planets around stars like this must probably form in a different way.”