TECHNOLOGY · VERIFIED DEVELOPMENT
NASA's Hubble Space Telescope Uncovers Second-Generation Planet
WHY IT MATTERS
This discovery suggests that the white dwarf stage may not be the end of a star's story, but rather a new chapter with the potential for new celestial bodies to form.
What happened
Astronomers have discovered a second-generation planet orbiting a white dwarf star using data from NASA's Hubble Space Telescope. The planet is believed to have formed from the material ejected by the star as it died.
The discovery was made by analyzing archival data from Hubble's 1999 observation of the star HS 0209+0832. Researchers found a high abundance of the element niobium, which is a signpost of the star's 'death' throes.
The team confirmed the Hubble observations with data from NASA's retired FUSE mission and NASA's TESS satellite, which detected periodic brightness variations indicating a planet orbits the white dwarf.
PRIMARY SOURCES
Suspected Second-generation Planet Solves NASA Hubble Cold Case
NASA · NASA media usage guidelines; third-party material excluded
CORRECTIONS & UPDATES
- Revision 1 · Initial ingestion · Oct 5, 2026, 4:15 PM
- Revision 2 · Source update detected · Oct 5, 2026, 4:15 PM