White Dwarf HS 0209+0832 Feeds on Planet Formed from Stellar Ashes
Astronomers have identified a white dwarf, HS 0209+0832, that is accreting material from a 'second-generation' planet. This planet likely formed from the ejected envelope of the star's progenitor after it died, rather than from the original protoplanetary disk. The discovery, published in Nature, marks the first evidence of such post-stellar planetary formation around a white dwarf.