Astronomers from the University of Warwick have discovered a phoenix exoplanet in the constellation of Cetus, located 270 light-years from Earth.
The second-generation planet lies within the star system of the white dwarf HS 0209+0832. According to a publication by the university, the celestial body formed from material ejected by its host star at the moment of the star's destruction, rather than surviving the death of an original progenitor or migrating from another planetary system.
The University of Warwick stated that the discovery is unusual because the exoplanet was created out of stellar debris released during the star's final collapse. Astronomers refer to such worlds as second-generation exoplanets because they emerge from the recycled remnants of an older star system.
Formation of second generation planets
White dwarfs represent the final evolutionary stage of stars that have exhausted their nuclear fuel. When a sun-like star sheds its outer layers, it leaves behind a dense stellar core while blowing material outward into the surrounding space. The constellation of Cetus, named after a sea monster in Greek mythology, sits in the equatorial region of the night sky and contains numerous notable stellar systems. Distance measurements place the HS 0209+0832 system roughly 270 light-years away, where one light-year equals the distance light travels in a single year, or approximately six trillion miles.
The University of Warwick, located in Coventry, England, is a major public research institution whose astrophysics researchers frequently track exoplanets beyond Earth's solar system. Exoplanets are planets that orbit stars outside our solar system, with thousands cataloged by modern observatories over recent decades.
Recent exoplanet discoveries
The finding follows other significant developments in exoplanet research reported earlier. In July, space news website Space.com noted that astronomers directly discovered a rocky Earth-like exoplanet with an atmosphere for the first time.
Additionally, in July 2025, scientists from the Department of Information and Computer Sciences at the University of California, Irvine reported the discovery of a convincing Earth analogue. That research was published on the electronic preprint portal arXiv, an online repository hosted by Cornell University that allows researchers to share scientific papers prior to peer review.
The University of California, Irvine is a public research university located in southern California. Observatories and academic institutions worldwide continue to expand search techniques for Earth-like planets and secondary planetary formations around white dwarfs.
