Born twice? Hubble may have found a planet made from a dying star's remains

Planets are supposed to be born with their star, not after it dies. A Warwick-led team went back through Hubble telescope data first gathered in 1999 and found an unusual chemical fingerprint — the element niobium — around a small, burnt-out star. That fingerprint hints at a Jupiter-sized planet that formed from material the star threw off as it died. It is still a candidate, not a confirmation, but if it holds up it would be the first known second-generation planet.