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Astronomers Solve Cosmic Cold Case with NASA Hubble Data
Diligent sleuthing by astronomers uncovered a surprising chemical clue that indicates the white dwarf star HS 0209+0832 may host a second-generation planet…
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· Published 06 Oct 2026, 16:19 · Updated 06 Oct 2026, 16:19
Credit: NASA · NASA material is generally not copyrighted; items carrying a third-party or copyright credit are excluded. The NASA logo and insignia are never reused.
NASANASA, ESA, Leah Hustak (STScI)
Diligent sleuthing by astronomers uncovered a surprising chemical clue that indicates the white dwarf star HS 0209+0832 may host a second-generation planet. This artist’s concept released on Oct. 5, 2026, depicts that possible explanation.
The white dwarf is the “dead” core of a star that burned through all of its nuclear fuel and lost its outer envelope of gas and dust to space. The second-generation planet formed from that cast-off gas and dust, which is why its chemical content is very different from a planet that formed as its host star was forming.
Learn more about this scientific discovery.
Image credit: NASA, ESA, Leah Hustak (STScI)
