Astronomers Spot Possible First ‘Second-Generation’ Planet

Astronomers have identified what may be the first “second-generation” planet, potentially formed from material left behind after a star reached the end of its life and became a white dwarf.

The candidate offers a possible glimpse of planet formation after a star’s main lifetime has ended, rather than during its early development.

The term “second-generation” refers to the possibility that remnants of the dying star provided the material for a new planet. A white dwarf is the compact stellar remnant left after such a transformation.

The finding remains tentative. The object has been described as a possible example of this process, not a confirmed second-generation planet.

If confirmed, the discovery could open a new avenue for understanding how planets arise and whether stellar remains can become the starting point for new planetary worlds.